////////////////////////////////////////////////////////////////////////////
public void buildContextMenu(IMenuManager manager) {
// operations
{
manager.add(new Separator());
manager.add(new DimensionHeaderAction(this, "&Delete Column",
TableLayoutInfo.getImageDescriptor("h/menu/delete.gif")) {
@Override
protected void run(DimensionInfo dimension) throws Exception {
m_layout.command_deleteColumn(dimension.getIndex(), true);
}