fixed removing of selected items in the "customise toolbar" popup after pressing backspace / delete

src/framework/uicomponents/view/selectableitemlistmodel.cpp

@@ -135,6 +135,10 @@ void SelectableItemListModel::removeSelection()
 {
     TRACEFUNC;
 
+    if (!isRemovingAvailable()) {
+        return;
+    }
+
     QList<int> selectedRows = m_selection->selectedRows();
     if (selectedRows.isEmpty()) {
         return;

src/notation/qml/MuseScore/NotationScene/internal/CustomiseView.qml

@@ -33,6 +33,7 @@ StyledListView {
 
     signal selectRowRequested(int index)
     signal clearSelectionRequested()
+    signal removeSelectionRequested()
 
     function positionViewAtSelectedItems() {
         var selectedIndexes = root.model.selectionModel.selectedIndexes
@@ -88,6 +89,10 @@ StyledListView {
             root.selectRowRequested(index)
         }
 
+        onRemoveSelectionRequested: {
+            root.removeSelectionRequested()
+        }
+
         navigation.name: item.title
         navigation.panel: root.navigationPanel
         navigation.row: model.index

src/notation/qml/MuseScore/NotationScene/internal/NoteInputBarCustomisePopup.qml

@@ -116,6 +116,10 @@ StyledPopupView {
             onClearSelectionRequested: {
                 customiseModel.clearSelection()
             }
+
+            onRemoveSelectionRequested: {
+                customiseModel.removeSelection()
+            }
         }
     }
 }