// Configuration
@Override
protected void registerCommandHandlers() {
registerCommandHandler(new ReorderColumnGroupCommandHandler(this));
registerCommandHandler(new ReorderColumnGroupStartCommandHandler(this));
registerCommandHandler(new ReorderColumnGroupEndCommandHandler(this));
registerCommandHandler(new ReorderColumnsAndGroupsCommandHandler(this));
registerCommandHandler(new GroupColumnReorderCommandHandler(this));
registerCommandHandler(new GroupMultiColumnReorderCommandHandler(this));
}