diff --git a/toonz/sources/include/toonz/txshcolumn.h b/toonz/sources/include/toonz/txshcolumn.h
index 18bef614..562507ac 100644
--- a/toonz/sources/include/toonz/txshcolumn.h
+++ b/toonz/sources/include/toonz/txshcolumn.h
@@ -348,11 +348,13 @@ Return true if cell in \b row is empty.
 */
   bool isCellEmpty(int row) const override;
 
+  bool isCellImplicit(int row) const;
+
   /*!
 Return cell in \b row.
 \sa getCells and setCell()
 */
-  virtual const TXshCell &getCell(int row) const;
+  virtual const TXshCell &getCell(int row, bool implicitLookup = true) const;
   /*!
 Set cell in \b row to \b TXshCell \b cell.
 \sa setCells() and getCell(); return false if cannot set cells.
diff --git a/toonz/sources/include/toonz/txsheet.h b/toonz/sources/include/toonz/txsheet.h
index adf1f269..4bd14766 100644
--- a/toonz/sources/include/toonz/txsheet.h
+++ b/toonz/sources/include/toonz/txsheet.h
@@ -192,9 +192,10 @@ public:
      an empty cell.
           \sa setCell(), getCells(), setCells()
   */
-  const TXshCell &getCell(int row, int col) const;
+  const TXshCell &getCell(int row, int col, bool implicitLookup = true) const;
 
-  const TXshCell &getCell(const CellPosition &pos) const;
+  const TXshCell &getCell(const CellPosition &pos,
+                          bool implicitLookup = true) const;
 
   bool isImplicitCell(int row, int col) const;
 
diff --git a/toonz/sources/include/toonz/txshsoundcolumn.h b/toonz/sources/include/toonz/txshsoundcolumn.h
index e866ae1a..cc265bad 100644
--- a/toonz/sources/include/toonz/txshsoundcolumn.h
+++ b/toonz/sources/include/toonz/txshsoundcolumn.h
@@ -137,7 +137,7 @@ public:
   /*! Return min row not empty.*/
   int getFirstRow() const override;
 
-  const TXshCell &getCell(int row) const override;
+  const TXshCell &getCell(int row, bool implicitLookup = false) const override;
   TXshCell getSoundCell(int row);
   void getCells(int row, int rowCount, TXshCell cells[]) override;
 
diff --git a/toonz/sources/tnztools/rasterselection.cpp b/toonz/sources/tnztools/rasterselection.cpp
index 6afcb5c0..33203af5 100644
--- a/toonz/sources/tnztools/rasterselection.cpp
+++ b/toonz/sources/tnztools/rasterselection.cpp
@@ -1347,9 +1347,11 @@ bool RasterSelection::isEditable() {
     // Test for Mesh-deformed levels
     const TStageObjectId &parentId = obj->getParent();
     if (parentId.isColumn() && obj->getParentHandle()[0] != 'H') {
-      TXshSimpleLevel *parentSl =
-          xsh->getCell(rowIndex, parentId.getIndex()).getSimpleLevel();
-      if (parentSl && parentSl->getType() == MESH_XSHLEVEL) return false;
+      TXshCell cell             = xsh->getCell(rowIndex, parentId.getIndex());
+      TXshSimpleLevel *parentSl = cell.getSimpleLevel();
+      if (!cell.getFrameId().isStopFrame() && parentSl &&
+          parentSl->getType() == MESH_XSHLEVEL)
+        return false;
     }
   }
 
diff --git a/toonz/sources/tnztools/strokeselection.cpp b/toonz/sources/tnztools/strokeselection.cpp
index a051decc..5a08db46 100644
--- a/toonz/sources/tnztools/strokeselection.cpp
+++ b/toonz/sources/tnztools/strokeselection.cpp
@@ -786,9 +786,11 @@ bool StrokeSelection::isEditable() {
     // Test for Mesh-deformed levels
     const TStageObjectId &parentId = obj->getParent();
     if (parentId.isColumn() && obj->getParentHandle()[0] != 'H') {
-      TXshSimpleLevel *parentSl =
-          xsh->getCell(rowIndex, parentId.getIndex()).getSimpleLevel();
-      if (parentSl && parentSl->getType() == MESH_XSHLEVEL) return false;
+      TXshCell cell             = xsh->getCell(rowIndex, parentId.getIndex());
+      TXshSimpleLevel *parentSl = cell.getSimpleLevel();
+      if (!cell.getFrameId().isStopFrame() && parentSl &&
+          parentSl->getType() == MESH_XSHLEVEL)
+        return false;
     }
   }
 
diff --git a/toonz/sources/tnztools/tool.cpp b/toonz/sources/tnztools/tool.cpp
index b04666a7..27e9305d 100644
--- a/toonz/sources/tnztools/tool.cpp
+++ b/toonz/sources/tnztools/tool.cpp
@@ -385,8 +385,8 @@ TImage *TTool::touchImage() {
       // measure the hold length (starting from the current row) : r0-r1
       int r0 = row, r1 = row;
       if (isAutoStretchEnabled)
-        while (xsh->getCell(r1 + 1, col) == cell &&
-               !xsh->isImplicitCell(r1 + 1, col))
+        while (!cell.getFrameId().isStopFrame() &&
+               xsh->getCell(r1 + 1, col, false) == cell)
           r1++;
       // find the proper frameid (possibly addisng suffix, in order to avoid a
       // fid already used)
@@ -465,6 +465,8 @@ TImage *TTool::touchImage() {
     while (a >= r0 && xsh->getCell(a, col).isEmpty()) a--;
     while (b <= r1 && xsh->getCell(b, col).isEmpty()) b++;
 
+    if (a >= r0 && xsh->getCell(a, col).getFrameId().isStopFrame()) a = r0 - 1;
+
     // find the level we must attach to
     if (a >= r0) {
       // there is a not-empty cell before the current one
diff --git a/toonz/sources/toonz/autoinputcellnumberpopup.cpp b/toonz/sources/toonz/autoinputcellnumberpopup.cpp
index 9a7780d6..df31f0a3 100644
--- a/toonz/sources/toonz/autoinputcellnumberpopup.cpp
+++ b/toonz/sources/toonz/autoinputcellnumberpopup.cpp
@@ -153,9 +153,8 @@ AutoInputCellNumberUndo::AutoInputCellNumberUndo(int increment, int interval,
     TXsheetP xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
     for (int c = 0; c < m_columnIndices.size(); ++c) {
       for (int r = m_r0; r <= rowUpTo; ++r) {
-        const TXshCell &cell = xsh->getCell(r, m_columnIndices.at(c));
-        m_beforeCells[k++] =
-            xsh->isImplicitCell(r, m_columnIndices.at(c)) ? TXshCell() : cell;
+        const TXshCell &cell = xsh->getCell(r, m_columnIndices.at(c), false);
+        m_beforeCells[k++] = cell;
       }
     }
   } else {
@@ -165,9 +164,8 @@ AutoInputCellNumberUndo::AutoInputCellNumberUndo(int increment, int interval,
     int k        = 0;
     TXsheetP xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
     for (int c = 0; c < m_columnIndices.size(); ++c) {
-      const TXshCell &cell = xsh->getCell(m_r0, m_columnIndices.at(c));
-      m_beforeCells[k++] =
-          xsh->isImplicitCell(m_r0, m_columnIndices.at(c)) ? TXshCell() : cell;
+      const TXshCell &cell = xsh->getCell(m_r0, m_columnIndices.at(c), false);
+      m_beforeCells[k++] = cell;
     }
   }
 }
diff --git a/toonz/sources/toonz/cellselection.cpp b/toonz/sources/toonz/cellselection.cpp
index 145e2f6c..52b9fde8 100644
--- a/toonz/sources/toonz/cellselection.cpp
+++ b/toonz/sources/toonz/cellselection.cpp
@@ -2897,8 +2897,7 @@ void TCellSelection::stopFrameHold(int row, int col, bool multiple) {
     return;
   }
 
-  TXshCell cell;
-  if (!xsh->isImplicitCell(row, col)) cell = xsh->getCell(row, col);
+  TXshCell cell = xsh->getCell(row, col, false);
 
   StopFrameHoldUndo *undo = new StopFrameHoldUndo(lvl, row, col, cell);
   TUndoManager::manager()->add(undo);
diff --git a/toonz/sources/toonz/cellselectioncommand.cpp b/toonz/sources/toonz/cellselectioncommand.cpp
index 40a45780..6e92c06d 100644
--- a/toonz/sources/toonz/cellselectioncommand.cpp
+++ b/toonz/sources/toonz/cellselectioncommand.cpp
@@ -213,8 +213,12 @@ void IncrementUndo::undo() const {
       xsh->removeCells(r.x0, r.y0, size);
     else {
       xsh->insertCells(r.x0, r.y0, size);
-      for (int j = 0; j < size; ++j)
-        xsh->setCell(r.x0 + j, r.y0, m_undoCells[i].second);
+      for (int j = 0; j < size; ++j) {
+        if (j > 0 && Preferences::instance()->isImplicitHoldEnabled())
+          xsh->setCell(r.x0 + j, r.y0, TXshCell(0, TFrameId::EMPTY_FRAME));
+        else
+          xsh->setCell(r.x0 + j, r.y0, m_undoCells[i].second);
+      }
     }
   }
 
@@ -391,8 +395,8 @@ StepUndo::StepUndo(int r0, int c0, int r1, int c1, int step)
   int k        = 0;
   for (int r = r0; r <= r1; ++r)
     for (int c = c0; c <= c1; ++c) {
-      const TXshCell &cell = xsh->getCell(r, c);
-      m_cells[k++] = xsh->isImplicitCell(r, c) ? TXshCell() : cell;
+      const TXshCell &cell = xsh->getCell(r, c, false);
+      m_cells[k++] = cell;
     }
 }
 
@@ -495,8 +499,8 @@ EachUndo::EachUndo(int r0, int c0, int r1, int c1, int each)
   TXsheetP xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
   for (int r = r0; r <= r1; ++r)
     for (int c = c0; c <= c1; ++c) {
-      const TXshCell &cell = xsh->getCell(r, c);
-      m_cells[k++] = xsh->isImplicitCell(r, c) ? TXshCell() : cell;
+      const TXshCell &cell = xsh->getCell(r, c, false);
+      m_cells[k++] = cell;
     }
 }
 
@@ -611,9 +615,8 @@ ReframeUndo::ReframeUndo(int r0, int r1, std::vector<int> columnIndeces,
   TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
   for (int r = r0; r <= (r1 + 1); r++)
     for (int c = 0; c < (int)m_columnIndeces.size(); c++) {
-      const TXshCell &cell = xsh->getCell(r, m_columnIndeces[c]);
-      m_cells[k++] =
-          xsh->isImplicitCell(r, m_columnIndeces[c]) ? TXshCell() : cell;
+      const TXshCell &cell = xsh->getCell(r, m_columnIndeces[c], false);
+      m_cells[k++] = cell;
     }
 
   m_newRows.clear();
@@ -847,7 +850,7 @@ ResetStepUndo::ResetStepUndo(int r0, int c0, int r1, int c1)
     TXsheetP xsh = app->getCurrentXsheet()->getXsheet();
     for (int r = r0; r <= r1; ++r) {
       const TXshCell &cell = xsh->getCell(r, c);
-      m_cells[k++] = xsh->isImplicitCell(r, c) ? TXshCell() : cell;
+      m_cells[k++] = xsh->getCell(r, c, false);
 
       if (prevCell != cell) {
         prevCell = cell;
@@ -947,7 +950,7 @@ IncreaseStepUndo::IncreaseStepUndo(int r0, int c0, int r1, int c1)
     TXsheetP xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
     for (int r = r0; r <= r1; ++r) {
       const TXshCell &cell = xsh->getCell(r, c);
-      m_cells[k++] = xsh->isImplicitCell(r, c) ? TXshCell() : cell;
+      m_cells[k++] = xsh->getCell(r, c, false);
 
       if (prevCell != cell) {
         prevCell = cell;
@@ -1062,11 +1065,11 @@ DecreaseStepUndo::DecreaseStepUndo(int r0, int c0, int r1, int c1)
     m_removedCells[c] = 0;
 
     bool removed = false;
-    m_cells[k++] = xsh->isImplicitCell(r0, c) ? TXshCell() : prevCell;
+    m_cells[k++] = xsh->getCell(r0, c, false);
 
     for (int r = r0 + 1; r <= r1; ++r) {
       const TXshCell &cell = xsh->getCell(r, c);
-      m_cells[k++] = xsh->isImplicitCell(r, c) ? TXshCell() : cell;
+      m_cells[k++] = xsh->getCell(r, c, false);
 
       if (prevCell == cell) {
         if (!removed) {
@@ -1610,16 +1613,9 @@ void CloneLevelUndo::insertCells() const {
   // Now, re-traverse the selected range, and add corresponding cells
   // in the destination range
   for (int c = m_range.m_c0; c <= m_range.m_c1; ++c) {
-    TXshCell prevCell;
     TXshLevelP lastLevel = 0;
     for (int r = m_range.m_r0; r <= m_range.m_r1; ++r) {
-      TXshCell srcCell = xsh->getCell(r, c);
-      if (useImplicitHold) {
-        if (r > m_range.m_r0 &&
-            (prevCell == srcCell || xsh->isImplicitCell(r, c)))
-          srcCell = TXshCell();
-        prevCell = srcCell;
-      }
+      TXshCell srcCell = xsh->getCell(r, c, false);
       if (TXshSimpleLevel *srcSl = srcCell.getSimpleLevel()) {
         std::map<TXshSimpleLevel *, TXshLevelP>::iterator lt =
             m_insertedLevels.find(srcSl);
diff --git a/toonz/sources/toonz/iocommand.cpp b/toonz/sources/toonz/iocommand.cpp
index 259517af..2ea781bf 100644
--- a/toonz/sources/toonz/iocommand.cpp
+++ b/toonz/sources/toonz/iocommand.cpp
@@ -322,8 +322,7 @@ bool beforeCellsInsert(TXsheet *xsh, int row, int &col, int rowCount,
   int i              = 0;
   TXshColumn *column = xsh->getColumn(col);
 
-  for (i = 0; i < rowCount && (xsh->getCell(row + i, col).isEmpty() ||
-                               xsh->isImplicitCell(row + i, col));
+  for (i = 0; i < rowCount && (xsh->getCell(row + i, col, false).isEmpty());
        i++) {
   }
   int type = (column && !column->isEmpty()) ? column->getColumnType()
@@ -510,8 +509,7 @@ public:
     TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
     for (c = m_col0; c <= m_col1; c++)
       for (r = m_row0; r <= m_row1; r++) {
-        TXshCell cell;
-        if (!xsh->isImplicitCell(r, c)) cell = xsh->getCell(r, c);
+        TXshCell cell             = xsh->getCell(r, c, false);
         TXshSimpleLevel *oldLevel = cell.getSimpleLevel();
         TFrameId fid              = cell.getFrameId();
         QPair<int, int> cellId(r, c);
diff --git a/toonz/sources/toonz/mainwindow.cpp b/toonz/sources/toonz/mainwindow.cpp
index 098a7067..10eb8171 100644
--- a/toonz/sources/toonz/mainwindow.cpp
+++ b/toonz/sources/toonz/mainwindow.cpp
@@ -2018,6 +2018,10 @@ void MainWindow::defineActions() {
   createMenuXsheetAction(MI_RemoveGlobalKeyframe,
                          QT_TR_NOOP("Remove Multiple Keys"), "",
                          "remove_multiple_keys");
+  createMenuXsheetAction(MI_SetGlobalStopframe,
+                         QT_TR_NOOP("Set Multiple Stop Frames"), "");
+  createMenuXsheetAction(MI_RemoveGlobalStopframe,
+                         QT_TR_NOOP("Remove Multiple Stop Frames"), "");
   createMenuXsheetAction(MI_RemoveEmptyColumns,
                          QT_TR_NOOP("Remove Empty Columns"), "",
                          "remove_empty_columns");
diff --git a/toonz/sources/toonz/menubar.cpp b/toonz/sources/toonz/menubar.cpp
index a799495f..f41d5973 100644
--- a/toonz/sources/toonz/menubar.cpp
+++ b/toonz/sources/toonz/menubar.cpp
@@ -429,6 +429,8 @@ void TopBar::loadMenubar() {
   addMenuItem(sceneMenu, MI_RemoveSceneFrame);
   addMenuItem(sceneMenu, MI_InsertGlobalKeyframe);
   addMenuItem(sceneMenu, MI_RemoveGlobalKeyframe);
+  addMenuItem(sceneMenu, MI_SetGlobalStopframe);
+  addMenuItem(sceneMenu, MI_RemoveGlobalStopframe);
   sceneMenu->addSeparator();
   addMenuItem(sceneMenu, MI_LipSyncPopup);
   sceneMenu->addSeparator();
diff --git a/toonz/sources/toonz/menubarcommandids.h b/toonz/sources/toonz/menubarcommandids.h
index 803baabd..5e73277c 100644
--- a/toonz/sources/toonz/menubarcommandids.h
+++ b/toonz/sources/toonz/menubarcommandids.h
@@ -137,6 +137,8 @@
 
 #define MI_InsertGlobalKeyframe "MI_InsertGlobalKeyframe"
 #define MI_RemoveGlobalKeyframe "MI_RemoveGlobalKeyframe"
+#define MI_SetGlobalStopframe "MI_SetGlobalStopframe"
+#define MI_RemoveGlobalStopframe "MI_RemoveGlobalStopframe"
 #define MI_DrawingSubForward "MI_DrawingSubForward"
 #define MI_DrawingSubBackward "MI_DrawingSubBackward"
 #define MI_DrawingSubGroupForward "MI_DrawingSubGroupForward"
diff --git a/toonz/sources/toonz/sceneviewerevents.cpp b/toonz/sources/toonz/sceneviewerevents.cpp
index d1949acf..ad94f27c 100644
--- a/toonz/sources/toonz/sceneviewerevents.cpp
+++ b/toonz/sources/toonz/sceneviewerevents.cpp
@@ -1617,15 +1617,16 @@ bool changeFrameSkippingHolds(QKeyEvent *e) {
   TXsheet *xsh  = app->getCurrentXsheet()->getXsheet();
   TXshCell cell = xsh->getCell(row, col);
   if (e->key() == Qt::Key_Down) {
+    int r0, r1;
+    bool range = xsh->getCellRange(col, r0, r1);
     if (cell.isEmpty()) {
-      int r0, r1;
-      if (xsh->getCellRange(col, r0, r1)) {
+      if (range) {
         while (row <= r1 && xsh->getCell(row, col).isEmpty()) row++;
         if (xsh->getCell(row, col).isEmpty()) return false;
       } else
         return false;
     } else {
-      while (xsh->getCell(row, col) == cell) row++;
+      while (row <= r1 && xsh->getCell(row, col) == cell) row++;
     }
   } else {
     // Key_Up
diff --git a/toonz/sources/toonz/timestretchpopup.cpp b/toonz/sources/toonz/timestretchpopup.cpp
index 488d03e9..09d2e156 100644
--- a/toonz/sources/toonz/timestretchpopup.cpp
+++ b/toonz/sources/toonz/timestretchpopup.cpp
@@ -68,8 +68,8 @@ public:
     TXsheetP xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
     for (int c = c0; c <= c1; c++)
       for (int r = r0; r <= r1; r++) {
-        const TXshCell &cell = xsh->getCell(r, c);
-        m_cells[k++] = xsh->isImplicitCell(r, c) ? TXshCell() : cell;
+        const TXshCell &cell = xsh->getCell(r, c, false);
+        m_cells[k++] = cell;
       }
   }
 
diff --git a/toonz/sources/toonz/xshcellmover.cpp b/toonz/sources/toonz/xshcellmover.cpp
index 27b433d2..a9fc40cc 100644
--- a/toonz/sources/toonz/xshcellmover.cpp
+++ b/toonz/sources/toonz/xshcellmover.cpp
@@ -248,9 +248,7 @@ bool CellsMover::canMoveCells(const TPoint &pos) {
   int count = 0;
   for (int i = 0; i < m_colCount; i++) {
     for (int j = 0; j < m_rowCount; j++) {
-      if (!xsh->getCell(r + j, c + i).isEmpty() &&
-          !xsh->isImplicitCell(r + j, c + i))
-        return false;
+      if (!xsh->getCell(r + j, c + i, false).isEmpty()) return false;
       count++;
     }
   }
diff --git a/toonz/sources/toonz/xshcellviewer.cpp b/toonz/sources/toonz/xshcellviewer.cpp
index c7497934..b3766f10 100644
--- a/toonz/sources/toonz/xshcellviewer.cpp
+++ b/toonz/sources/toonz/xshcellviewer.cpp
@@ -2272,7 +2272,8 @@ void CellArea::drawLevelCell(QPainter &p, int row, int col, bool isReference,
   if (showLevelName &&
       (!sameLevel || (row > 0 && xsh->isImplicitCell(row - 1, col)) ||
        (isAfterMarkers && !isSimpleView &&
-        Preferences::instance()->isLevelNameOnEachMarkerEnabled()))) {
+        Preferences::instance()->isLevelNameOnEachMarkerEnabled()) ||
+       prevCell.getFrameId().isStopFrame())) {
     std::wstring levelName = cell.m_level->getName();
     QString text           = QString::fromStdWString(levelName);
     QFontMetrics fm(font);
@@ -2989,7 +2990,7 @@ void CellArea::drawPaletteCell(QPainter &p, int row, int col,
         text, font, nameRect.width() - fm.width(numberStr) - 2, QString("~"));
 #endif
 
-    if (!sameLevel || isAfterMarkers)
+    if (!sameLevel || isAfterMarkers || prevCell.getFrameId().isStopFrame())
       p.drawText(nameRect, Qt::AlignLeft | Qt::AlignBottom, elidaName);
   }
 }
diff --git a/toonz/sources/toonz/xsheetcmd.cpp b/toonz/sources/toonz/xsheetcmd.cpp
index 7731ad91..f633ce10 100644
--- a/toonz/sources/toonz/xsheetcmd.cpp
+++ b/toonz/sources/toonz/xsheetcmd.cpp
@@ -42,6 +42,7 @@
 #include "toonz/tfxhandle.h"
 #include "toonz/scenefx.h"
 #include "toonz/preferences.h"
+#include "toonz/txshlevelcolumn.h"
 
 // TnzQt includes
 #include "toonzqt/tselectionhandle.h"
@@ -335,8 +336,8 @@ public:
 
     for (int c = 0; c != colsCount; ++c) {
       // Store cell
-      const TXshCell &cell = xsh->getCell(m_frame, c);
-      m_cells[c] = xsh->isImplicitCell(m_frame, c) ? TXshCell() : cell;
+      const TXshCell &cell = xsh->getCell(m_frame, c, false);
+      m_cells[c] = cell;
 
       // Store stage object keyframes
       TStageObject *obj = xsh->getStageObject(TStageObjectId::ColumnId(c));
@@ -636,6 +637,265 @@ public:
   }
 } removeGlobalKeyframeCommand;
 
+//*****************************************************************************
+//    SetGlobalStopframe  command
+//*****************************************************************************
+
+class SetGlobalStopframeUndo final : public TUndo {
+  std::vector<std::pair<int, TXshCell>> m_oldCells;
+  std::vector<int> m_columns;
+  int m_frame;
+
+public:
+  SetGlobalStopframeUndo(int frame, const std::vector<int> &columns);
+  ~SetGlobalStopframeUndo() {}
+
+  void undo() const override {
+    if (m_frame < 0 || !m_oldCells.size()) return;
+
+    TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+
+    for (int i = 0; i < m_oldCells.size(); i++) {
+      std::pair<int, TXshCell> cellData = m_oldCells[i];
+      TXshColumn *xshColumn = xsh->getColumn(cellData.first);
+      if (!xshColumn) continue;
+
+      TXshCellColumn *cellColumn = xshColumn->getCellColumn();
+      if (!cellColumn) continue;
+
+      std::vector<TXshCell> cells;
+      cells.push_back(cellData.second);
+      cellColumn->setCells(m_frame, 1, &cells[0]);
+    }
+
+    TApp::instance()->getCurrentScene()->setDirtyFlag(true);
+    TApp::instance()->getCurrentXsheet()->notifyXsheetChanged();
+  }
+
+  void redo() const override;
+
+  int getSize() const override { return m_oldCells.size(); }
+
+  QString getHistoryString() override {
+    return QObject::tr("Set Multiple Stop Frames  at Frame %1")
+        .arg(QString::number(m_frame + 1));
+  }
+};
+
+//-----------------------------------------------------------------------------
+
+SetGlobalStopframeUndo::SetGlobalStopframeUndo(int frame,
+                                               const std::vector<int> &columns)
+    : m_frame(frame), m_columns(columns) {
+  TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+
+  m_oldCells.clear();
+
+  for (int c : m_columns) {
+    if (c < 0) continue;
+
+    TXshColumn *xshColumn = xsh->getColumn(c);
+    if (!xshColumn || xshColumn->getSoundColumn() ||
+        xshColumn->getSoundTextColumn() || xshColumn->isLocked() ||
+        xshColumn->isEmpty())
+      continue;
+
+    TXshCellColumn *cellColumn = xshColumn->getCellColumn();
+    if (!cellColumn || cellColumn->isEmpty()) continue;
+
+    TXshCell cell = cellColumn->getCell(m_frame, false);
+    if (!cell.isEmpty()) continue;
+
+    m_oldCells.push_back(std::make_pair(c, cell));
+  }
+}
+
+//-----------------------------------------------------------------------------
+
+void SetGlobalStopframeUndo::redo() const {
+  TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+
+  for (int c : m_columns) {
+    if (c < 0) continue;
+
+    TXshColumn *xshColumn = xsh->getColumn(c);
+    if (!xshColumn || xshColumn->getSoundColumn() ||
+        xshColumn->getSoundTextColumn() || xshColumn->isLocked() ||
+        xshColumn->isEmpty())
+      continue;
+
+    TXshCellColumn *cellColumn = xshColumn->getCellColumn();
+    if (!cellColumn || cellColumn->isEmpty()) continue;
+
+    TXshCell cell = cellColumn->getCell(m_frame);
+    if (!cell.isEmpty() && !cellColumn->isCellImplicit(m_frame)) continue;
+
+    if (cell.isEmpty()) {  // Might have hit a stop frame
+      for (int r = m_frame - 1; r >= 0; r--) {
+        cell = cellColumn->getCell(r, false);
+        if (cell.isEmpty()) continue;
+        break;
+      }
+      if (cell.isEmpty()) continue;
+    }
+    cellColumn->setCell(
+        m_frame, TXshCell(cell.m_level.getPointer(), TFrameId::STOP_FRAME));
+  }
+
+  TApp::instance()->getCurrentScene()->setDirtyFlag(true);
+  TApp::instance()->getCurrentXsheet()->notifyXsheetChanged();
+}
+
+//-----------------------------------------------------------------------------
+
+static void setGlobalStopframe(int frame) {
+  std::vector<int> columns;
+  ::getColumns(columns);
+
+  if (columns.empty()) return;
+
+  TUndo *undo = new SetGlobalStopframeUndo(frame, columns);
+  TUndoManager::manager()->add(undo);
+
+  undo->redo();
+}
+
+//=============================================================================
+
+class SetGlobalStopframeCommand final : public MenuItemHandler {
+public:
+  SetGlobalStopframeCommand() : MenuItemHandler(MI_SetGlobalStopframe) {}
+  void execute() override {
+    int frame = TApp::instance()->getCurrentFrame()->getFrame();
+    XshCmd::setGlobalStopframe(frame);
+  }
+} setGlobalStopframeCommand;
+
+//*****************************************************************************
+//    RemoveGlobalStopframe  command
+//*****************************************************************************
+
+class RemoveGlobalStopframeUndo final : public TUndo {
+  std::vector<std::pair<int, TXshCell>> m_oldCells;
+  std::vector<int> m_columns;
+  int m_frame;
+
+public:
+  RemoveGlobalStopframeUndo(int frame, const std::vector<int> &columns);
+  ~RemoveGlobalStopframeUndo() {}
+
+  void undo() const override {
+    if (m_frame < 0 || !m_oldCells.size()) return;
+
+    TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+
+    for (int i = 0; i < m_oldCells.size(); i++) {
+      std::pair<int, TXshCell> cellData = m_oldCells[i];
+      TXshColumn *xshColumn = xsh->getColumn(cellData.first);
+      if (!xshColumn) continue;
+
+      TXshCellColumn *cellColumn = xshColumn->getCellColumn();
+      if (!cellColumn) continue;
+
+      std::vector<TXshCell> cells;
+      cells.push_back(cellData.second);
+      cellColumn->setCells(m_frame, 1, &cells[0]);
+    }
+
+    TApp::instance()->getCurrentScene()->setDirtyFlag(true);
+    TApp::instance()->getCurrentXsheet()->notifyXsheetChanged();
+  }
+
+  void redo() const override;
+
+  int getSize() const override { return m_oldCells.size(); }
+
+  QString getHistoryString() override {
+    return QObject::tr("Remove Multiple Stop Frames at Frame %1")
+        .arg(QString::number(m_frame + 1));
+  }
+};
+
+//-----------------------------------------------------------------------------
+
+RemoveGlobalStopframeUndo::RemoveGlobalStopframeUndo(
+    int frame, const std::vector<int> &columns)
+    : m_frame(frame), m_columns(columns) {
+  TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+
+  m_oldCells.clear();
+
+  for (int c : m_columns) {
+    if (c < 0) continue;
+
+    TXshColumn *xshColumn = xsh->getColumn(c);
+    if (!xshColumn || xshColumn->getSoundColumn() ||
+        xshColumn->getSoundTextColumn() || xshColumn->isLocked() ||
+        xshColumn->isEmpty())
+      continue;
+
+    TXshCellColumn *cellColumn = xshColumn->getCellColumn();
+    if (!cellColumn || cellColumn->isEmpty()) continue;
+
+    TXshCell cell = cellColumn->getCell(m_frame, false);
+    if (!cell.getFrameId().isStopFrame()) continue;
+
+    m_oldCells.push_back(std::make_pair(c, cell));
+  }
+}
+
+//-----------------------------------------------------------------------------
+
+void RemoveGlobalStopframeUndo::redo() const {
+  TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+
+  for (int c : m_columns) {
+    if (c < 0) continue;
+
+    TXshColumn *xshColumn = xsh->getColumn(c);
+    if (!xshColumn || xshColumn->getSoundColumn() ||
+        xshColumn->getSoundTextColumn() || xshColumn->isLocked() ||
+        xshColumn->isEmpty())
+      continue;
+
+    TXshCellColumn *cellColumn = xshColumn->getCellColumn();
+    if (!cellColumn || cellColumn->isEmpty()) continue;
+
+    TXshCell cell = cellColumn->getCell(m_frame, false);
+    if (!cell.getFrameId().isStopFrame()) continue;
+
+    cellColumn->clearCells(m_frame, 1);
+  }
+
+  TApp::instance()->getCurrentScene()->setDirtyFlag(true);
+  TApp::instance()->getCurrentXsheet()->notifyXsheetChanged();
+}
+
+//-----------------------------------------------------------------------------
+
+static void removeGlobalStopframe(int frame) {
+  std::vector<int> columns;
+  ::getColumns(columns);
+
+  if (columns.empty()) return;
+
+  TUndo *undo = new RemoveGlobalStopframeUndo(frame, columns);
+  TUndoManager::manager()->add(undo);
+
+  undo->redo();
+}
+
+//=============================================================================
+
+class RemoveGlobalStopframeCommand final : public MenuItemHandler {
+public:
+  RemoveGlobalStopframeCommand() : MenuItemHandler(MI_RemoveGlobalStopframe) {}
+  void execute() override {
+    int frame = TApp::instance()->getCurrentFrame()->getFrame();
+    XshCmd::removeGlobalStopframe(frame);
+  }
+} RemoveGlobalStopframeCommand;
+
 //============================================================
 //	Drawing Substitution
 //============================================================
@@ -662,10 +922,8 @@ public:
       tempCol = c;
       while (r <= m_range.m_r1 + 1) {
         tempRow = r;
-        if (xsh->getCell(tempRow, tempCol).isEmpty() ||
-            xsh->isImplicitCell(tempRow, tempCol)) {
+        if (xsh->getCell(tempRow, tempCol, false).isEmpty())
           emptyCells.push_back(std::make_pair(tempRow, tempCol));
-        }
         r++;
       }
       r = m_range.m_r0;
diff --git a/toonz/sources/toonz/xsheetdragtool.cpp b/toonz/sources/toonz/xsheetdragtool.cpp
index ea488886..f8a5ca1f 100644
--- a/toonz/sources/toonz/xsheetdragtool.cpp
+++ b/toonz/sources/toonz/xsheetdragtool.cpp
@@ -2063,8 +2063,7 @@ protected:
         getViewer()->orientation()->isVerticalTimeline());
     for (c = col; c < rect.getLx() + col; c++) {
       for (r = row; r < rect.getLy() + row; r++)
-        if (!xsh->getCell(r, c).isEmpty() && !xsh->isImplicitCell(r, c))
-          return false;
+        if (!xsh->getCell(r, c, false).isEmpty()) return false;
     }
     return true;
   }
diff --git a/toonz/sources/toonz/xshrowviewer.cpp b/toonz/sources/toonz/xshrowviewer.cpp
index 010191a7..3e001320 100644
--- a/toonz/sources/toonz/xshrowviewer.cpp
+++ b/toonz/sources/toonz/xshrowviewer.cpp
@@ -1255,6 +1255,8 @@ void RowArea::contextMenuEvent(QContextMenuEvent *event) {
   menu->addAction(cmdManager->getAction(MI_RemoveSceneFrame));
   menu->addAction(cmdManager->getAction(MI_InsertGlobalKeyframe));
   menu->addAction(cmdManager->getAction(MI_RemoveGlobalKeyframe));
+  menu->addAction(cmdManager->getAction(MI_SetGlobalStopframe));
+  menu->addAction(cmdManager->getAction(MI_RemoveGlobalStopframe));
   menu->addAction(cmdManager->getAction(MI_DrawingSubForward));
   menu->addAction(cmdManager->getAction(MI_DrawingSubBackward));
   menu->addSeparator();
diff --git a/toonz/sources/toonzlib/plasticdeformerfx.cpp b/toonz/sources/toonzlib/plasticdeformerfx.cpp
index a38a186a..cdeaeda0 100644
--- a/toonz/sources/toonzlib/plasticdeformerfx.cpp
+++ b/toonz/sources/toonzlib/plasticdeformerfx.cpp
@@ -196,15 +196,6 @@ bool PlasticDeformerFx::buildTextureDataSl(double frame, TRenderSettings &info,
   TXshLevelColumn *texColumn = lcfx->getColumn();
 
   TXshCell texCell = texColumn->getCell(row);
-  if (texCell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    texColumn->getRange(r0, r1);
-    for (int r = std::min(r1, (int)frame); r >= r0; r--) {
-      texCell = texColumn->getCell(r);
-      if (texCell.isEmpty()) continue;
-      break;
-    }
-  }
 
   TXshSimpleLevel *texSl = texCell.getSimpleLevel();
   const TFrameId &texFid = texCell.getFrameId();
diff --git a/toonz/sources/toonzlib/scenefx.cpp b/toonz/sources/toonzlib/scenefx.cpp
index 6bac95c5..c239ffd2 100644
--- a/toonz/sources/toonzlib/scenefx.cpp
+++ b/toonz/sources/toonzlib/scenefx.cpp
@@ -111,15 +111,6 @@ public:
     if (!m_cellColumn) return m_frame;
     TXshCell cell = m_cellColumn->getCell(tfloor(frame));
     assert(!cell.isEmpty());
-    if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-      int r0, r1;
-      m_cellColumn->getRange(r0, r1);
-      for (int r = std::min(r1, frame); r >= r0; r--) {
-        cell = m_cellColumn->getCell(r);
-        if (cell.isEmpty()) continue;
-        break;
-      }
-    }
     return cell.m_frameId.getNumber() - 1;
   }
 
@@ -813,15 +804,6 @@ PlacedFx FxBuilder::makePF(TLevelColumnFx *lcfx) {
   // Retrieve the corresponding xsheet cell to build up
   /*-- 現在のフレームのセルを取得 --*/
   TXshCell cell  = lcfx->getColumn()->getCell(tfloor(m_frame));
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    lcfx->getColumn()->getRange(r0, r1);
-    for (int r = std::min(r1, tfloor(m_frame)); r >= r0; r--) {
-      cell = lcfx->getColumn()->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   int levelFrame = cell.m_frameId.getNumber() - 1;
 
   /*--  ParticlesFxに繋がっておらず、空セルの場合は 中身無しを返す --*/
@@ -964,15 +946,6 @@ PlacedFx FxBuilder::makePF(TPaletteColumnFx *pcfx) {
   if (!pcfx->getColumn()->isPreviewVisible()) return PlacedFx();
 
   TXshCell cell = pcfx->getColumn()->getCell(tfloor(m_frame));
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    pcfx->getColumn()->getRange(r0, r1);
-    for (int r = std::min(r1, tfloor(m_frame)); r >= r0; r--) {
-      cell = pcfx->getColumn()->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
 
   if (cell.isEmpty() || cell.getFrameId().isStopFrame()) return PlacedFx();
 
@@ -1002,15 +975,6 @@ PlacedFx FxBuilder::makePF(TZeraryColumnFx *zcfx) {
     return PlacedFx();
 
   TXshCell cell = zcfx->getColumn()->getCell(tfloor(m_frame));
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    zcfx->getColumn()->getRange(r0, r1);
-    for (int r = std::min(r1, tfloor(m_frame)); r >= r0; r--) {
-      cell = zcfx->getColumn()->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
 
   // Build
   PlacedFx pf;
diff --git a/toonz/sources/toonzlib/tcolumnfx.cpp b/toonz/sources/toonzlib/tcolumnfx.cpp
index 12e532c2..179958e6 100644
--- a/toonz/sources/toonzlib/tcolumnfx.cpp
+++ b/toonz/sources/toonzlib/tcolumnfx.cpp
@@ -821,15 +821,6 @@ bool TLevelColumnFx::canHandle(const TRenderSettings &info, double frame) {
 
   int row       = m_levelColumn->getFirstRow();
   TXshCell cell = m_levelColumn->getCell(row);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, row); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return true;
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
@@ -847,15 +838,6 @@ TAffine TLevelColumnFx::handledAffine(const TRenderSettings &info,
 
   int row       = m_levelColumn->getFirstRow();
   TXshCell cell = m_levelColumn->getCell(row);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, row); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return TAffine();
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
@@ -893,16 +875,6 @@ TFilePath TLevelColumnFx::getPalettePath(int frame) const {
   if (!m_levelColumn) return TFilePath();
 
   TXshCell cell = m_levelColumn->getCell(frame);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, frame); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
-
   if (cell.isEmpty()) return TFilePath();
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
@@ -924,15 +896,6 @@ TPalette *TLevelColumnFx::getPalette(int frame) const {
   if (!m_levelColumn) return 0;
 
   TXshCell cell = m_levelColumn->getCell(frame);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, frame); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return 0;
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
@@ -960,15 +923,6 @@ void TLevelColumnFx::doDryCompute(TRectD &rect, double frame,
 
   int row       = (int)frame;
   TXshCell cell = m_levelColumn->getCell(row);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, row); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return;
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
@@ -1019,15 +973,6 @@ void TLevelColumnFx::doCompute(TTile &tile, double frame,
   // Ensure that a corresponding cell and level exists
   int row       = (int)frame;
   TXshCell cell = m_levelColumn->getCell(row);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, row); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return;
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
@@ -1446,15 +1391,6 @@ bool TLevelColumnFx::doGetBBox(double frame, TRectD &bBox,
 
   int row       = (int)frame;
   TXshCell cell = m_levelColumn->getCell(row);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, row); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return false;
 
   TXshLevelP xshl = cell.m_level;
@@ -1487,15 +1423,6 @@ bool TLevelColumnFx::doGetBBox(double frame, TRectD &bBox,
     dpi = imageInfo.m_dpix / Stage::inch;
   } else {
     TXshCell cell = m_levelColumn->getCell(row);
-    if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-      int r0, r1;
-      m_levelColumn->getRange(r0, r1);
-      for (int r = std::min(r1, row); r >= r0; r--) {
-        cell = m_levelColumn->getCell(r);
-        if (cell.isEmpty()) continue;
-        break;
-      }
-    }
     TImageP img = cell.getImage(false);
     if (!img) return false;
     bBox = img->getBBox();
@@ -1532,6 +1459,12 @@ TFxTimeRegion TLevelColumnFx::getTimeRegion() const {
   int first = m_levelColumn->getFirstRow();
   int last  = m_levelColumn->getRowCount();
 
+  // For implicit hold, if the last frame is not a stop frame, it's held
+  // indefinitely
+  if (Preferences::instance()->isImplicitHoldEnabled() &&
+      !m_levelColumn->getCell(last - 1).getFrameId().isStopFrame())
+    return TFxTimeRegion(0, (std::numeric_limits<double>::max)());
+
   return TFxTimeRegion(first, last);
 }
 
@@ -1565,15 +1498,6 @@ std::string TLevelColumnFx::getAlias(double frame,
   if (!m_levelColumn) return std::string();
 
   TXshCell cell = m_levelColumn->getCell((int)frame);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, (int)frame); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return std::string();
 
   TFilePath fp;
@@ -1635,15 +1559,6 @@ TAffine TLevelColumnFx::getDpiAff(int frame) {
   if (!m_levelColumn) return TAffine();
 
   TXshCell cell = m_levelColumn->getCell(frame);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    m_levelColumn->getRange(r0, r1);
-    for (int r = std::min(r1, frame); r >= r0; r--) {
-      cell = m_levelColumn->getCell(r);
-      if (cell.isEmpty()) continue;
-      break;
-    }
-  }
   if (cell.isEmpty()) return TAffine();
 
   TXshSimpleLevel *sl = cell.m_level->getSimpleLevel();
diff --git a/toonz/sources/toonzlib/txshcolumn.cpp b/toonz/sources/toonzlib/txshcolumn.cpp
index 30e59918..e21210ae 100644
--- a/toonz/sources/toonzlib/txshcolumn.cpp
+++ b/toonz/sources/toonzlib/txshcolumn.cpp
@@ -84,11 +84,34 @@ int TXshCellColumn::getFirstRow() const { return m_first; }
 
 //-----------------------------------------------------------------------------
 
-const TXshCell &TXshCellColumn::getCell(int row) const {
+const TXshCell &TXshCellColumn::getCell(int row, bool implicitLookup) const {
   static TXshCell emptyCell;
-  if (row < 0 || row < m_first || row >= m_first + (int)m_cells.size())
-    return emptyCell;
-  return m_cells[row - m_first];
+
+  if (row < 0 || row < m_first || !m_cells.size()) return emptyCell;
+
+  bool implicitEnabled = Preferences::instance()->isImplicitHoldEnabled() &&
+                         implicitLookup &&
+                         getColumnType() != ColumnType::eSoundTextType &&
+                         getColumnType() != ColumnType::eSoundType;
+
+  int r = row - m_first;
+
+  if (r >= m_cells.size()) {
+    if (!implicitEnabled) return emptyCell;
+    r = m_cells.size() - 1;
+    if (m_cells[r].getFrameId().isStopFrame()) return emptyCell;
+  }
+
+  if (m_cells[r].isEmpty() && implicitEnabled) {
+    for (; r >= 0; r--) {
+      if (m_cells[r].isEmpty()) continue;
+      if (m_cells[r].getFrameId().isStopFrame()) return emptyCell;
+      break;
+    }
+    if (r < 0) return emptyCell;
+  }
+
+  return m_cells[r];
 }
 
 //-----------------------------------------------------------------------------
@@ -99,6 +122,21 @@ bool TXshCellColumn::isCellEmpty(int row) const {
 
 //-----------------------------------------------------------------------------
 
+bool TXshCellColumn::isCellImplicit(int row) const {
+  if (!Preferences::instance()->isImplicitHoldEnabled() ||
+      getColumnType() == ColumnType::eSoundType ||
+      getColumnType() == ColumnType::eSoundTextType || row < 0 ||
+      row < m_first || getCell(row).isEmpty())
+    return false;
+
+  // If we got here, the cell is technically not empty
+  // If it is truely empty in the array, then it is implicit
+  int r = row - m_first;
+  return r >= m_cells.size() || m_cells[r].isEmpty();
+}
+
+//-----------------------------------------------------------------------------
+
 //--- debug only
 void TXshCellColumn::checkColumn() const {
   assert(m_first >= 0);
@@ -422,10 +460,11 @@ bool TXshCellColumn::getLevelRange(int row, int &r0, int &r1) const {
   r0 = r1       = row;
   TXshCell cell = getCell(row);
   if (cell.isEmpty()) return false;
-  while (r0 > 0 &&
+  while (r0 > 0 && !isCellImplicit(r0 - 1) &&
          getCell(r0 - 1).m_level.getPointer() == cell.m_level.getPointer())
     r0--;
-  while (getCell(r1 + 1).m_level.getPointer() == cell.m_level.getPointer())
+  while (!isCellImplicit(r1 + 1) &&
+         getCell(r1 + 1).m_level.getPointer() == cell.m_level.getPointer())
     r1++;
   return true;
 }
diff --git a/toonz/sources/toonzlib/txsheet.cpp b/toonz/sources/toonzlib/txsheet.cpp
index 9040cfad..195aa6cc 100644
--- a/toonz/sources/toonzlib/txsheet.cpp
+++ b/toonz/sources/toonzlib/txsheet.cpp
@@ -230,11 +230,12 @@ int TXsheet::getFrameCount() const { return m_imp->m_frameCount; }
 
 //-----------------------------------------------------------------------------
 
-const TXshCell &TXsheet::getCell(int row, int col) const {
-  return getCell(CellPosition(row, col));
+const TXshCell &TXsheet::getCell(int row, int col, bool implicitLookup) const {
+  return getCell(CellPosition(row, col), implicitLookup);
 }
 
-const TXshCell &TXsheet::getCell(const CellPosition &pos) const {
+const TXshCell &TXsheet::getCell(const CellPosition &pos,
+                                 bool implicitLookup) const {
   static const TXshCell emptyCell;
 
   TXshColumnP column = m_imp->m_columnSet.getColumn(pos.layer());
@@ -242,22 +243,7 @@ const TXshCell &TXsheet::getCell(const CellPosition &pos) const {
   TXshCellColumn *xshColumn = column->getCellColumn();
   if (!xshColumn) return emptyCell;
   int frame = pos.frame();
-  TXshCell cell = xshColumn->getCell(frame);
-  if (cell.isEmpty() && Preferences::instance()->isImplicitHoldEnabled()) {
-    int r0, r1;
-    xshColumn->getRange(r0, r1);
-    for (int r = std::min(r1, pos.frame()); r >= r0; r--) {
-      TXshCell tempCell = xshColumn->getCell(r);
-      if (tempCell.isEmpty()) continue;
-      if (tempCell.getSoundLevel() || tempCell.getSoundTextLevel())
-        return emptyCell;
-      if (tempCell.getFrameId().isStopFrame() && cell.isEmpty())
-        return emptyCell;
-      frame = r;
-      break;
-    }
-  }
-  return xshColumn->getCell(frame);
+  return xshColumn->getCell(frame, implicitLookup);
 }
 
 //-----------------------------------------------------------------------------
@@ -274,17 +260,8 @@ bool TXsheet::isImplicitCell(const CellPosition &pos) const {
   if (!column) return false;
   TXshCellColumn *xshColumn = column->getCellColumn();
   if (!xshColumn) return false;
-  TXshCell tempCell = xshColumn->getCell(pos.frame());
-  if (!tempCell.isEmpty()) return false;
 
-  int r0, r1;
-  xshColumn->getRange(r0, r1);
-  for (int r = std::min(r1, pos.frame()); r >= r0; r--) {
-    tempCell = xshColumn->getCell(r);
-    if (tempCell.getFrameId().isStopFrame()) return false;
-    if (!tempCell.isEmpty()) return true;
-  }
-  return false;
+  return xshColumn->isCellImplicit(pos.frame());
 }
 
 //-----------------------------------------------------------------------------
@@ -294,7 +271,7 @@ bool TXsheet::setCell(int row, int col, const TXshCell &cell) {
 
   bool wasColumnEmpty = isColumnEmpty(col);
   TXshCellColumn *cellColumn;
-  if (!cell.isEmpty() && !isImplicitCell(row, col)) {
+  if (!cell.isEmpty()) {
     TXshLevel *level = cell.m_level.getPointer();
     assert(level);
 
@@ -678,12 +655,8 @@ void TXsheet::reverseCells(int r0, int c0, int r1, int c1) {
   for (int j = c0; j <= c1; j++) {
     int i1, i2;
     for (i1 = r0, i2 = r1; i1 < i2; i1++, i2--) {
-      TXshCell app1;
-      if (!isImplicitCell(CellPosition(i1, j)))
-        app1 = getCell(CellPosition(i1, j));
-      TXshCell app2;
-      if (!isImplicitCell(CellPosition(i2, j)))
-        app2 = getCell(CellPosition(i2, j));
+      TXshCell app1 = getCell(CellPosition(i1, j), false);
+      TXshCell app2 = getCell(CellPosition(i2, j), false);
       setCell(i1, j, app2);
       setCell(i2, j, app1);
     }
@@ -700,9 +673,7 @@ void TXsheet::swingCells(int r0, int c0, int r1, int c1) {
 
   for (int j = c0; j <= c1; j++) {
     for (int i1 = r0Mod, i2 = r1 - 1; i2 >= r0; i1++, i2--) {
-      TXshCell cell;
-      if (!isImplicitCell(CellPosition(i2, j)))
-        cell = getCell(CellPosition(i2, j));
+      TXshCell cell = getCell(CellPosition(i2, j), false);
       setCell(i1, j, cell);
     }
   }
@@ -734,7 +705,7 @@ bool TXsheet::incrementCells(int r0, int c0, int r1, int c1,
       int frame1 = getCell(CellPosition(i, j)).getFrameId().getNumber();
       if (frame1 == TFrameId::EMPTY_FRAME || frame1 == TFrameId::STOP_FRAME)
         break;
-      while (!getCell(CellPosition(i + 1, j)).isEmpty() &&
+      while ((i + 1 <= r1) && !getCell(CellPosition(i + 1, j)).isEmpty() &&
              !getCell(CellPosition(i + 1, j)).getFrameId().isStopFrame() &&
              getCell(CellPosition(i + 1, j)).getFrameId().getNumber() ==
                  getCell(CellPosition(i, j)).getFrameId().getNumber())
@@ -754,9 +725,7 @@ bool TXsheet::incrementCells(int r0, int c0, int r1, int c1,
         forUndo.push_back(std::pair<TRect, TXshCell>(
             TRect(i + 1, j, i + 1 + numCells - 1, j), cell));
         for (int k = 1; k <= numCells; k++) {
-          TXshCell cell;
-          if (!isImplicitCell(CellPosition(i + k, j)))
-            cell = getCell(CellPosition(i, j));
+          TXshCell cell = getCell(CellPosition(i, j), false);
           setCell(i + k, j, cell);
         }
         i += numCells;
@@ -765,9 +734,7 @@ bool TXsheet::incrementCells(int r0, int c0, int r1, int c1,
       {
         int numCells = count - frame2 + frame1;
         i            = i - numCells;
-        TXshCell cell;
-        if (!isImplicitCell(CellPosition(i + 1, j)))
-          cell = getCell(CellPosition(i + 1, j));
+        TXshCell cell = getCell(CellPosition(i + 1, j), false);
         forUndo.push_back(std::pair<TRect, TXshCell>(
             TRect(i + 1, j, i + 1 + numCells - 1, j), cell));
         removeCells(i + 1, j, numCells);
@@ -788,9 +755,7 @@ void TXsheet::duplicateCells(int r0, int c0, int r1, int c1, int upTo) {
     insertCells(r1 + 1, j, upTo - (r1 + 1) + 1);
     for (int i = r1 + 1; i <= upTo; i++) {
       int row = r0 + ((i - (r1 + 1)) % chunk);
-      TXshCell cell;
-      if (!isImplicitCell(CellPosition(row, j)))
-        cell = getCell(CellPosition(row, j));
+      TXshCell cell = getCell(CellPosition(row, j), false);
       setCell(i, j, cell);
     }
   }
@@ -809,8 +774,8 @@ void TXsheet::stepCells(int r0, int c0, int r1, int c1, int type) {
   int k = 0;
   for (int r = r0; r <= r1; r++)
     for (int c = c0; c <= c1; c++) {
-      const TXshCell &cell = getCell(CellPosition(r, c));
-      cells[k++] = isImplicitCell(CellPosition(r, c)) ? TXshCell() : cell;
+      const TXshCell &cell = getCell(CellPosition(r, c), false);
+      cells[k++] = cell;
     }
 
   int nrows = nr * (type - 1);
@@ -919,8 +884,8 @@ void TXsheet::eachCells(int r0, int c0, int r1, int c1, int type) {
        j += type)  // in cells copio il contenuto delle celle che mi interessano
   {
     for (k = c0; k <= c1; k++, i++) {
-      const TXshCell &cell = getCell(CellPosition(j, k));
-      cells[i] = isImplicitCell(j, k) ? TXshCell() : cell;
+      const TXshCell &cell = getCell(CellPosition(j, k), false);
+      cells[i] = cell;
     }
   }
 
diff --git a/toonz/sources/toonzlib/txshsoundcolumn.cpp b/toonz/sources/toonzlib/txshsoundcolumn.cpp
index dd639bc4..09767a01 100644
--- a/toonz/sources/toonzlib/txshsoundcolumn.cpp
+++ b/toonz/sources/toonzlib/txshsoundcolumn.cpp
@@ -316,7 +316,7 @@ int TXshSoundColumn::getFirstRow() const {
 
 //-----------------------------------------------------------------------------
 
-const TXshCell &TXshSoundColumn::getCell(int row) const {
+const TXshCell &TXshSoundColumn::getCell(int row, bool implicitLookup) const {
   static TXshCell emptyCell;
 
   ColumnLevel *l = getColumnLevelByFrame(row);