// grid layout
ShowGridLayoutAction gridLayoutAction = new ShowGridLayoutAction( graphView );
tm.appendToGroup( groupName, gridLayoutAction );
mm.appendToGroup( groupName, gridLayoutAction );
// horizontal tree layout
ShowHorizontalTreeLayoutAction horizontalTreeLayoutAction = new ShowHorizontalTreeLayoutAction( graphView );
mm.appendToGroup( groupName, horizontalTreeLayoutAction );
// horizontal shift layout
ShowHorizontalShiftLayoutAction horizontalShiftLayoutAction = new ShowHorizontalShiftLayoutAction(
graphView );
mm.appendToGroup( groupName, horizontalShiftLayoutAction );