private void addGroupToControl(PaletteGroup group, JComponent control) {
    PaletteGroupHeader groupHeader = new PaletteGroupHeader(this, group);
    myGroupHeaders.add(groupHeader);
    myGroups.add(group);
    control.add(groupHeader);
    PaletteComponentList componentList = new PaletteComponentList(myProject, this, group);
    control.add(componentList);
    groupHeader.setComponentList(componentList);
    componentList.addListSelectionListener(myListSelectionListener);
  }
private void addGroupToControl(PaletteGroup group, JComponent control)