public void createControl(Composite parent) {
Composite panel = new Composite(parent, SWT.NONE);
panel.setLayout(new GridLayout(1, false));
builder = new ParameterListBuilder(panel);
GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
builder.getComposite().setLayoutData(gridData);
setControl(panel);
}