diff --git a/toonz/sources/include/toonzqt/fxselection.h b/toonz/sources/include/toonzqt/fxselection.h
index 81adeee..45b3278 100644
--- a/toonz/sources/include/toonzqt/fxselection.h
+++ b/toonz/sources/include/toonzqt/fxselection.h
@@ -156,6 +156,7 @@ signals:
   void doCollapse(const QList<TFxP> &);
   void doExplodeChild(const QList<TFxP> &);
   void doDelete();
+  void columnPasted(const QList<TXshColumnP> &);
 };
 
 #endif
diff --git a/toonz/sources/include/toonzqt/schematicviewer.h b/toonz/sources/include/toonzqt/schematicviewer.h
index 3e5c552..14e013d 100644
--- a/toonz/sources/include/toonzqt/schematicviewer.h
+++ b/toonz/sources/include/toonzqt/schematicviewer.h
@@ -5,6 +5,7 @@
 
 // TnzLib includes
 #include "toonz/tstageobjectid.h"
+#include "toonz/txshcolumn.h"
 
 // TnzBase includes
 #include "tfx.h"
@@ -569,6 +570,7 @@ signals:
   void doDeleteFxs(const FxSelection *);
   void doDeleteStageObjects(const StageObjectSelection *);
 
+  void columnPasted(const QList<TXshColumnP> &);
 protected slots:
 
   void onSceneChanged();
diff --git a/toonz/sources/toonz/CMakeLists.txt b/toonz/sources/toonz/CMakeLists.txt
index 7b9b27c..a338383 100644
--- a/toonz/sources/toonz/CMakeLists.txt
+++ b/toonz/sources/toonz/CMakeLists.txt
@@ -185,6 +185,7 @@ set(HEADERS
     ../include/orientation.h
     ../include/saveloadqsettings.h
     xdtsio.h
+    levelcommand.h
 # Tracker file
     ObjectTracker.h
     dummyprocessor.h
diff --git a/toonz/sources/toonz/cellselection.cpp b/toonz/sources/toonz/cellselection.cpp
index 643180d..e0ed921 100644
--- a/toonz/sources/toonz/cellselection.cpp
+++ b/toonz/sources/toonz/cellselection.cpp
@@ -13,6 +13,7 @@
 #include "timestretchpopup.h"
 #include "tapp.h"
 #include "xsheetviewer.h"
+#include "levelcommand.h"
 
 // TnzTools includes
 #include "tools/toolutils.h"
@@ -1391,6 +1392,26 @@ public:
   //-----------------------------------------------------------------------------
 };
 
+//-----------------------------------------------------------------------------
+// obtain level set contained in the cellData
+// it is used for checking and updating the scene cast when pasting
+void getLevelSetFromData(const TCellData *cellData,
+                         std::set<TXshLevel *> &levelSet) {
+  for (int c = 0; c < cellData->getCellCount(); c++) {
+    TXshCell cell = cellData->getCell(c);
+    if (cell.isEmpty()) continue;
+    TXshLevelP tmpLevel = cell.m_level;
+    if (levelSet.count(tmpLevel.getPointer()) == 0) {
+      // gather levels in subxsheet
+      if (tmpLevel->getChildLevel()) {
+        TXsheet *childXsh = tmpLevel->getChildLevel()->getXsheet();
+        childXsh->getUsedLevels(levelSet);
+      }
+      levelSet.insert(tmpLevel.getPointer());
+    }
+  }
+}
+
 }  // namespace
 //-----------------------------------------------------------------------------
 
@@ -1749,8 +1770,16 @@ void TCellSelection::pasteCells() {
                                 (newCr0 == r0 && newCr1 == r1));
     }
     if (!isPaste) return;
+
     initUndo = true;
     TUndoManager::manager()->beginBlock();
+
+    // make sure that the pasting levels are registered in the scene cast
+    // it may rename the level if there is another level with the same name
+    std::set<TXshLevel *> pastedLevels;
+    getLevelSetFromData(cellData, pastedLevels);
+    LevelCmd::addMissingLevelsToCast(pastedLevels);
+
     TUndoManager::manager()->add(new PasteCellsUndo(
         r0, c0, r1, c1, oldR0, oldC0, oldR1, oldC1, areColumnsEmpty));
     TApp::instance()->getCurrentScene()->setDirtyFlag(true);
@@ -2159,6 +2188,12 @@ void TCellSelection::pasteDuplicateCells() {
       return;
     }
 
+    // make sure that the pasting levels are registered in the scene cast
+    // it may rename the level if there is another level with the same name
+    std::set<TXshLevel *> pastedLevels;
+    getLevelSetFromData(newCellData, pastedLevels);
+    LevelCmd::addMissingLevelsToCast(pastedLevels);
+
     TUndoManager::manager()->add(new PasteCellsUndo(
         r0, c0, r1, c1, oldR0, oldC0, oldR1, oldC1, areColumnsEmpty));
     TApp::instance()->getCurrentScene()->setDirtyFlag(true);
@@ -2994,10 +3029,19 @@ void TCellSelection::overWritePasteCells() {
       areColumnsEmpty.push_back(!column || column->isEmpty() ||
                                 (newCr0 == r0 && newCr1 == r1));
     }
+    TUndoManager::manager()->beginBlock();
+
+    // make sure that the pasting levels are registered in the scene cast
+    // it may rename the level if there is another level with the same name
+    std::set<TXshLevel *> pastedLevels;
+    getLevelSetFromData(cellData, pastedLevels);
+    LevelCmd::addMissingLevelsToCast(pastedLevels);
+
     /*-- r0,c0,r1,c1はペーストされた範囲　old付きはペースト前の選択範囲 --*/
     TUndoManager::manager()->add(
         new OverwritePasteCellsUndo(r0, c0, r1, c1, oldR0, oldC0, oldR1, oldC1,
                                     areColumnsEmpty, beforeData));
+    TUndoManager::manager()->endBlock();
     TApp::instance()->getCurrentScene()->setDirtyFlag(true);
 
     delete beforeData;
diff --git a/toonz/sources/toonz/columnselection.cpp b/toonz/sources/toonz/columnselection.cpp
index 0c9cb82..b84616a 100644
--- a/toonz/sources/toonz/columnselection.cpp
+++ b/toonz/sources/toonz/columnselection.cpp
@@ -7,6 +7,7 @@
 #include "menubarcommandids.h"
 #include "columncommand.h"
 #include "tapp.h"
+#include "levelcommand.h"
 
 // TnzLib includes
 #include "toonz/txsheethandle.h"
@@ -19,10 +20,48 @@
 #include "toonz/levelproperties.h"
 #include "orientation.h"
 #include "toonz/preferences.h"
+#include "toonz/txshchildlevel.h"
 
 // TnzCore includes
 #include "tvectorimage.h"
 #include "ttoonzimage.h"
+#include "tundo.h"
+
+namespace {
+// obtain level set contained in the column specified by indices
+// it is used for checking and updating the scene cast when pasting
+// based on TXsheet::getUsedLevels
+void getLevelSetFromColumnIndices(const std::set<int>& indices,
+                                  std::set<TXshLevel*>& levelSet) {
+  TXsheet* xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+  for (auto c : indices) {
+    TXshColumnP column = const_cast<TXsheet*>(xsh)->getColumn(c);
+    if (!column) continue;
+
+    TXshCellColumn* cellColumn = column->getCellColumn();
+    if (!cellColumn) continue;
+
+    int r0, r1;
+    if (!cellColumn->getRange(r0, r1)) continue;
+
+    TXshLevel* level = 0;
+    for (int r = r0; r <= r1; r++) {
+      TXshCell cell = cellColumn->getCell(r);
+      if (cell.isEmpty() || !cell.m_level) continue;
+
+      if (level != cell.m_level.getPointer()) {
+        level = cell.m_level.getPointer();
+        levelSet.insert(level);
+        if (level->getChildLevel()) {
+          TXsheet* childXsh = level->getChildLevel()->getXsheet();
+          childXsh->getUsedLevels(levelSet);
+        }
+      }
+    }
+  }
+}
+
+}  // namespace
 
 //=============================================================================
 // TColumnSelection
@@ -78,7 +117,21 @@ void TColumnSelection::pasteColumns() {
     return;
   else
     indices.insert(*m_indices.begin());
+
+  TUndoManager::manager()->beginBlock();
+
   ColumnCmd::pasteColumns(indices);
+
+  if (!indices.empty()) {
+    // make sure that the levels contained in the pasted columns are registered
+    // in the scene cast it may rename the level if there is another level with
+    // the same name
+    std::set<TXshLevel*> pastedLevels;
+    getLevelSetFromColumnIndices(indices, pastedLevels);
+    LevelCmd::addMissingLevelsToCast(pastedLevels);
+  }
+
+  TUndoManager::manager()->endBlock();
 }
 
 //-----------------------------------------------------------------------------
@@ -86,11 +139,25 @@ void TColumnSelection::pasteColumns() {
 void TColumnSelection::pasteColumnsAbove() {
   std::set<int> indices;
   if (isEmpty()) {  // in case that no columns are selected
-    TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+    TXsheet* xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
     indices.insert(xsh->getFirstFreeColumnIndex());
   } else
     indices.insert(*m_indices.rbegin() + 1);
+
+  TUndoManager::manager()->beginBlock();
+
   ColumnCmd::pasteColumns(indices);
+
+  if (!indices.empty()) {
+    // make sure that the levels contained in the pasted columns are registered
+    // in the scene cast it may rename the level if there is another level with
+    // the same name
+    std::set<TXshLevel*> pastedLevels;
+    getLevelSetFromColumnIndices(indices, pastedLevels);
+    LevelCmd::addMissingLevelsToCast(pastedLevels);
+  }
+
+  TUndoManager::manager()->endBlock();
 }
 
 //-----------------------------------------------------------------------------
@@ -136,7 +203,7 @@ void TColumnSelection::explodeChild() {
 //-----------------------------------------------------------------------------
 
 static bool canMergeColumns(int column, int mColumn, bool forMatchlines) {
-  TXsheet *xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
+  TXsheet* xsh = TApp::instance()->getCurrentXsheet()->getXsheet();
 
   if (column < 0 || mColumn < 0) return false;
 
@@ -256,9 +323,9 @@ void TColumnSelection::cloneChild() {
 //-----------------------------------------------------------------------------
 
 void TColumnSelection::hideColumns() {
-  TApp *app = TApp::instance();
+  TApp* app = TApp::instance();
   for (auto o : Orientations::all()) {
-    ColumnFan *columnFan =
+    ColumnFan* columnFan =
         app->getCurrentXsheet()->getXsheet()->getColumnFan(o);
     std::set<int>::iterator it = m_indices.begin();
     for (; it != m_indices.end(); ++it) columnFan->deactivate(*it);
diff --git a/toonz/sources/toonz/levelcommand.cpp b/toonz/sources/toonz/levelcommand.cpp
index 9abd2a4..0e764cb 100644
--- a/toonz/sources/toonz/levelcommand.cpp
+++ b/toonz/sources/toonz/levelcommand.cpp
@@ -1,5 +1,5 @@
 
-
+#include "levelcommand.h"
 #include "toonzqt/menubarcommand.h"
 #include "menubarcommandids.h"
 #include "tapp.h"
@@ -19,6 +19,7 @@
 #include "toonz/levelset.h"
 #include "toonz/txshcell.h"
 #include "toonz/childstack.h"
+#include "toonz/txshchildlevel.h"
 
 #include "toonzqt/dvdialog.h"
 #include "toonzqt/icongenerator.h"
@@ -30,6 +31,7 @@
 #include "tsystem.h"
 
 #include "toonzqt/gutil.h"
+#include "toonz/namebuilder.h"
 
 namespace {
 
@@ -426,3 +428,119 @@ public:
   void execute() override { revertTo(false); }
 
 } revertToLastSaveCommand;
+
+//-----------------------------------------------------------------------------
+namespace {
+class addLevelToCastUndo final : public TUndo {
+  TXshLevelP m_xl;
+  std::wstring m_newName, m_oldName;
+
+public:
+  addLevelToCastUndo(TXshLevel *xl, const std::wstring newName = L"",
+                     const std::wstring oldName = L"")
+      : m_xl(xl), m_newName(newName), m_oldName(oldName) {}
+
+  void undo() const override {
+    TLevelSet *levelSet =
+        TApp::instance()->getCurrentScene()->getScene()->getLevelSet();
+    levelSet->removeLevel(m_xl.getPointer());
+    if (m_oldName != L"") m_xl->setName(m_oldName);
+    if (m_isLastInBlock)
+      TApp::instance()->getCurrentScene()->notifyCastChange();
+  }
+  void redo() const override {
+    TLevelSet *levelSet =
+        TApp::instance()->getCurrentScene()->getScene()->getLevelSet();
+    if (m_newName != L"") m_xl->setName(m_newName);
+    levelSet->insertLevel(m_xl.getPointer());
+    if (m_isLastInRedoBlock)
+      TApp::instance()->getCurrentScene()->notifyCastChange();
+  }
+
+  int getSize() const override { return sizeof *this + 100; }
+
+  QString getHistoryString() override {
+    return QObject::tr("Add Level to Scene Cast : %1")
+        .arg(QString::fromStdWString(m_xl->getName()));
+  }
+};
+
+};  // namespace
+
+void LevelCmd::addMissingLevelsToCast(const QList<TXshColumnP> &columns) {
+  // make sure that the levels contained in the pasted columns are registered in
+  // the scene cast it may rename the level if there is another level with the
+  // same name
+  std::set<TXshLevel *> levels;
+  // obtain level set contained in the specified columns
+  // it is used for checking and updating the scene cast when pasting
+  // based on TXsheet::getUsedLevels
+  for (auto column : columns) {
+    if (!column) continue;
+
+    TXshCellColumn *cellColumn = column->getCellColumn();
+    if (!cellColumn) continue;
+
+    int r0, r1;
+    if (!cellColumn->getRange(r0, r1)) continue;
+
+    TXshLevel *level = 0;
+    for (int r = r0; r <= r1; r++) {
+      TXshCell cell = cellColumn->getCell(r);
+      if (cell.isEmpty() || !cell.m_level) continue;
+
+      if (level != cell.m_level.getPointer()) {
+        level = cell.m_level.getPointer();
+        levels.insert(level);
+        if (level->getChildLevel()) {
+          TXsheet *childXsh = level->getChildLevel()->getXsheet();
+          childXsh->getUsedLevels(levels);
+        }
+      }
+    }
+  }
+  LevelCmd::addMissingLevelsToCast(levels);
+}
+
+void LevelCmd::addMissingLevelsToCast(std::set<TXshLevel *> &levels) {
+  if (levels.empty()) return;
+  TUndoManager::manager()->beginBlock();
+  TLevelSet *levelSet =
+      TApp::instance()->getCurrentScene()->getScene()->getLevelSet();
+  bool castChanged = false;
+  // for each level
+  for (auto level : levels) {
+    std::wstring levelName = level->getName();
+
+    // search by level name
+    if (TXshLevel *levelInCast = levelSet->getLevel(levelName)) {
+      // continue if it is the same level. This should be in most cases
+      if (level == levelInCast) continue;
+
+      // if the the name is occupied by another level, then rename and register
+      // it
+      std::wstring oldName = levelName;
+      NameModifier nm(levelName);
+      levelName = nm.getNext();
+      while (levelSet->hasLevel(levelName)) levelName = nm.getNext();
+      addLevelToCastUndo *undo =
+          new addLevelToCastUndo(level, levelName, oldName);
+      undo->m_isLastInRedoBlock = false;  // prevent to emit signal
+      undo->redo();
+      TUndoManager::manager()->add(undo);
+      castChanged = true;
+    }
+    // if not found
+    else {
+      // register the level
+      addLevelToCastUndo *undo = new addLevelToCastUndo(level);
+      undo->redo();
+      TUndoManager::manager()->add(undo);
+      castChanged = true;
+    }
+  }
+
+  TUndoManager::manager()->endBlock();
+
+  if (castChanged) TApp::instance()->getCurrentScene()->notifyCastChange();
+}
\ No newline at end of file
diff --git a/toonz/sources/toonz/levelcommand.h b/toonz/sources/toonz/levelcommand.h
new file mode 100644
index 0000000..d14132f
--- /dev/null
+++ b/toonz/sources/toonz/levelcommand.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#ifndef LEVELCOMMAND_H
+#define LEVELCOMMAND_H
+
+#include "toonz/txshcolumn.h"
+
+#include <set>
+#include <QList>
+
+class TXshLevel;
+
+namespace LevelCmd {
+void addMissingLevelsToCast(const QList<TXshColumnP>& columns);
+void addMissingLevelsToCast(std::set<TXshLevel*>& levels);
+}  // namespace LevelCmd
+
+#endif
diff --git a/toonz/sources/toonz/tpanels.cpp b/toonz/sources/toonz/tpanels.cpp
index fb5b582..356b686 100644
--- a/toonz/sources/toonz/tpanels.cpp
+++ b/toonz/sources/toonz/tpanels.cpp
@@ -41,6 +41,7 @@
 #include "tapp.h"
 #include "mainwindow.h"
 #include "columncommand.h"
+#include "levelcommand.h"
 
 // TnzTools includes
 #include "tools/tooloptions.h"
@@ -257,6 +258,12 @@ void SchematicScenePanel::onDeleteStageObjects(
 
 //-----------------------------------------------------------------------------
 
+void SchematicScenePanel::onColumnPaste(const QList<TXshColumnP> &columns) {
+  LevelCmd::addMissingLevelsToCast(columns);
+}
+
+//-----------------------------------------------------------------------------
+
 void SchematicScenePanel::showEvent(QShowEvent *e) {
   if (m_schematicViewer->isStageSchematicViewed())
     setWindowTitle(QObject::tr("Stage Schematic"));
@@ -290,6 +297,8 @@ void SchematicScenePanel::showEvent(QShowEvent *e) {
           SLOT(updateSchematic()));
   connect(app->getCurrentScene(), SIGNAL(sceneSwitched()), m_schematicViewer,
           SLOT(onSceneSwitched()));
+  connect(m_schematicViewer, SIGNAL(columnPasted(const QList<TXshColumnP> &)),
+          this, SLOT(onColumnPaste(const QList<TXshColumnP> &)));
   m_schematicViewer->updateSchematic();
 }
 
@@ -319,6 +328,9 @@ void SchematicScenePanel::hideEvent(QHideEvent *e) {
              m_schematicViewer, SLOT(updateSchematic()));
   disconnect(app->getCurrentScene(), SIGNAL(sceneSwitched()), m_schematicViewer,
              SLOT(onSceneSwitched()));
+  disconnect(m_schematicViewer,
+             SIGNAL(columnPasted(const QList<TXshColumnP> &)), this,
+             SLOT(onColumnPaste(const QList<TXshColumnP> &)));
 }
 
 //=============================================================================
diff --git a/toonz/sources/toonz/tpanels.h b/toonz/sources/toonz/tpanels.h
index 910a37c..d28041e 100644
--- a/toonz/sources/toonz/tpanels.h
+++ b/toonz/sources/toonz/tpanels.h
@@ -191,6 +191,7 @@ protected slots:
   void onEditObject();
   void onDeleteFxs(const FxSelection *);
   void onDeleteStageObjects(const StageObjectSelection *);
+  void onColumnPaste(const QList<TXshColumnP> &);
 };
 
 //=========================================================
diff --git a/toonz/sources/toonzqt/fxselection.cpp b/toonz/sources/toonzqt/fxselection.cpp
index 873c608..99926a0 100644
--- a/toonz/sources/toonzqt/fxselection.cpp
+++ b/toonz/sources/toonzqt/fxselection.cpp
@@ -211,10 +211,22 @@ void FxSelection::pasteSelection() {
             TPointD(ssv->getOldScenePos().x(), ssv->getOldScenePos().y());
     }
 
+    if (!columns.isEmpty()) {
+      // make sure that the levels contained in the pasted column nodes are
+      // registered in the scene cast it may rename the level if there is
+      // another level with the same name
+      TUndoManager::manager()->beginBlock();
+      emit columnPasted(columns);
+    }
+
     TFxCommand::pasteFxs(fxs.toStdList(), zeraryFxColumnSize.toStdMap(),
                          columns.toStdList(), m_pastePosition, m_xshHandle,
                          m_fxHandle);
 
+    if (!columns.isEmpty()) {
+      TUndoManager::manager()->endBlock();
+    }
+
     if (m_schematicScene) {
       selectNone();
       for (int i = 0; i < (int)fxs.size(); i++) select(fxs[i]);
@@ -263,6 +275,10 @@ bool FxSelection::insertPasteSelection() {
     if (!auto_.m_destruct) {
       auto_.m_destruct = true;
       TUndoManager::manager()->beginBlock();
+      // make sure that the levels contained in the pasted column nodes are
+      // registered in the scene cast it may rename the level if there is
+      // another level with the same name
+      emit columnPasted(columns);
     }
 
     TFxCommand::insertPasteFxs(selectedLinks[i], fxs.toStdList(),
@@ -349,8 +365,13 @@ bool FxSelection::replacePasteSelection() {
     if (fxs.empty() && columns.empty()) return true;
 
     // auto ends the undo block in its destructor
-    if (!auto_.m_destruct)
+    if (!auto_.m_destruct) {
       auto_.m_destruct = true, TUndoManager::manager()->beginBlock();
+      // make sure that the levels contained in the pasted column nodes are
+      // registered in the scene cast it may rename the level if there is
+      // another level with the same name
+      emit columnPasted(columns);
+    }
 
     TFx *inFx = m_selectedFxs[i].getPointer();
     TFxCommand::replacePasteFxs(inFx, fxs.toStdList(),
diff --git a/toonz/sources/toonzqt/schematicviewer.cpp b/toonz/sources/toonzqt/schematicviewer.cpp
index 063987c..56e471e 100644
--- a/toonz/sources/toonzqt/schematicviewer.cpp
+++ b/toonz/sources/toonzqt/schematicviewer.cpp
@@ -783,6 +783,13 @@ SchematicViewer::SchematicViewer(QWidget *parent)
   connect(m_stageScene->getStageSelection(), SIGNAL(doDelete()), this,
           SLOT(deleteStageObjects()));
 
+  connect(m_fxScene->getFxSelection(),
+          SIGNAL(columnPasted(const QList<TXshColumnP> &)), this,
+          SIGNAL(columnPasted(const QList<TXshColumnP> &)));
+  connect(m_stageScene->getStageSelection(),
+          SIGNAL(columnPasted(const QList<TXshColumnP> &)), this,
+          SIGNAL(columnPasted(const QList<TXshColumnP> &)));
+
   m_viewer->setScene(m_stageScene);
   m_fxToolbar->hide();
 
diff --git a/toonz/sources/toonzqt/stageobjectselection.cpp b/toonz/sources/toonzqt/stageobjectselection.cpp
index 6763ac8..9d66576 100644
--- a/toonz/sources/toonzqt/stageobjectselection.cpp
+++ b/toonz/sources/toonzqt/stageobjectselection.cpp
@@ -365,6 +365,21 @@ void StageObjectSelection::pasteSelection() {
   std::vector<TStageObjectId> ids = objData->restoreObjects(
       indexes, restoredSplineIds, m_xshHandle->getXsheet(),
       StageObjectsData::eDoClone, m_pastePosition);
+
+  // make sure that the levels contained in the pasted column nodes are
+  // registered in the scene cast it may rename the level if there is another
+  // level with the same name
+  QList<TXshColumnP> pastedColumns;
+  for (auto c : indexes) {
+    TXshColumnP column = m_xshHandle->getXsheet()->getColumn(c);
+    if (!column || column->isEmpty()) continue;
+    pastedColumns.append(column);
+  }
+  if (!pastedColumns.isEmpty()) {
+    TUndoManager::manager()->beginBlock();
+    emit columnPasted(pastedColumns);
+  }
+
   StageObjectsData *undoData = new StageObjectsData();
   undoData->storeObjects(ids, m_xshHandle->getXsheet(), 0);
   undoData->storeColumnFxs(indexes, m_xshHandle->getXsheet(), 0);
@@ -374,6 +389,8 @@ void StageObjectSelection::pasteSelection() {
       m_objHandle, m_fxHandle));
   m_xshHandle->notifyXsheetChanged();
   m_pastePosition = TConst::nowhere;
+
+  if (!pastedColumns.isEmpty()) TUndoManager::manager()->endBlock();
 }
 
 //-------------------------------------------------------
diff --git a/toonz/sources/toonzqt/stageobjectselection.h b/toonz/sources/toonzqt/stageobjectselection.h
index 2063c75..c18bd71 100644
--- a/toonz/sources/toonzqt/stageobjectselection.h
+++ b/toonz/sources/toonzqt/stageobjectselection.h
@@ -5,6 +5,7 @@
 
 #include "toonzqt/selection.h"
 #include "toonz/tstageobjectid.h"
+#include "toonz/txshcolumn.h"
 #include "tgeometry.h"
 #include <QList>
 #include <QPair>
@@ -98,6 +99,7 @@ signals:
   void doCollapse(QList<TStageObjectId>);
   void doExplodeChild(QList<TStageObjectId>);
   void doDelete();
+  void columnPasted(const QList<TXshColumnP> &);
 };
 
 #endif