addButton.setLayoutData(data1);
addButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
IVar property = new Variable();
property.createNew(state);
VarEditorDialog dialog = new VarEditorDialog(
parentShell, property);
if (dialog.open() == Dialog.OK) {
state.addVar(property);
configsViewer.refresh(true);