c2.setLayout(new GridLayout(4, false));
addEmptyLabel(c2, choice.level * 2);
Combo combo = new Combo(c2, SWT.DROP_DOWN | SWT.READ_ONLY);
addPersonFields(combo);
combo.setData("choice", i);
combo.addSelectionListener(this);
combo.select(choice.index);
Button buttonRemove = new Button(c2, SWT.PUSH);
buttonRemove.setText("-");
buttonRemove.setData("remove", i);
buttonRemove.addSelectionListener(this);