private void guiInit() { DefaultListModel listOfStuff = new DefaultListModel(); partsList.setModel(listOfStuff); listOfStuff.addElement(new ElementOrNullWrapper(null, "Build Model from skeleton file")); Sandbox[] possibilities = (Sandbox[]) AuthoringTool.getInstance().getWorld().sandboxes.getArrayValue(); for (int i = 0; i < possibilities.length; i++) { listOfStuff.addElement(new ElementOrNullWrapper(possibilities[i])); } partsList.setSelectedIndex(0); aliceFPSCombo.insertItemAt("15", 0); aliceFPSCombo.insertItemAt("30", 1); aliceFPSCombo.setSelectedIndex(1); nativeFPSCombo.insertItemAt("60", 0); nativeFPSCombo.insertItemAt("120", 1); nativeFPSCombo.setSelectedIndex(0); }