Bug 124599 Shortcut delete and menu delete act different in table column.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/parts/GraphicalEditorWithFlyoutPalette.java
import org.eclipse.gef.editparts.ZoomManager;
import org.eclipse.gef.palette.PaletteRoot;
import org.eclipse.gef.requests.GroupRequest;
import org.eclipse.gef.ui.actions.CopyTemplateAction;
import org.eclipse.gef.ui.actions.DeleteAction;
import org.eclipse.gef.ui.actions.EditorPartAction;
import org.eclipse.gef.ui.actions.GEFActionConstants;
import org.eclipse.gef.ui.actions.RedoAction;
import org.eclipse.gef.ui.actions.SaveAction;
import org.eclipse.gef.ui.actions.SelectionAction;
import org.eclipse.gef.ui.actions.StackAction;
import org.eclipse.gef.ui.actions.UndoAction;
import org.eclipse.gef.ui.actions.UpdateAction;
import org.eclipse.gef.ui.actions.ZoomInAction;
import org.eclipse.gef.ui.actions.ZoomOutAction;
import org.eclipse.gef.ui.palette.CustomizeAction;
import org.eclipse.gef.ui.palette.FlyoutPaletteComposite;
import org.eclipse.gef.ui.palette.LayoutAction;
import org.eclipse.gef.ui.palette.PaletteContextMenuProvider;
import org.eclipse.gef.ui.palette.PaletteEditPartFactory;
import org.eclipse.gef.ui.palette.PaletteViewer;
import org.eclipse.gef.ui.palette.PaletteViewerPreferences;
import org.eclipse.gef.ui.palette.PaletteViewerProvider;
import org.eclipse.gef.ui.palette.SettingsAction;
import org.eclipse.gef.ui.palette.FlyoutPaletteComposite.FlyoutPreferences;
import org.eclipse.gef.ui.palette.customize.PaletteSettingsDialog;
import org.eclipse.gef.ui.parts.GraphicalEditor;
import org.eclipse.gef.ui.views.palette.PalettePage;
import org.eclipse.gef.ui.views.palette.PaletteViewerPage;
import org.eclipse.jface.action.IAction;