innerPanel.setArrowReceiveOrNot(!(designer instanceof ComplexActivityDesigner));
if (isVertical) {
innerPanel.setLayout(new BoxLayout(innerPanel, BoxLayout.Y_AXIS));
innerPanel.add(comp);
innerPanel.add(new Separator(true));
} else {
innerPanel.setLayout(new BorderLayout(0, 0));
innerPanel.add("West", comp);
innerPanel.add("Center", new HorizontalSeparator());