@Override
public void createContents(Composite parent) {
FormToolkit toolkit = getManagedForm().getToolkit();
// toolkit.createLabel(parent, "Nothing is selected");
Section section = toolkit.createSection(parent, Section.TITLE_BAR | Section.EXPANDED);
section.setText("Selection Details");
Composite composite = toolkit.createComposite(section);
Label label = toolkit.createLabel(composite, "Select one or more items to view or edit their details.", SWT.WRAP);
section.setClient(composite);