ExpandableComposite.TITLE_BAR);
mappingClassSection.setText(Messages.getString("MappingsSection.mappingclass_sname_"+suffix)); //$NON-NLS-1$
GridData gd = new GridData(SWT.FILL, 0, true, false);
mappingClassSection.setLayoutData(gd);
MappingClassComposite classAOrBComposite = new MappingClassComposite(mappingClassSection, toolkit, modelManager);
mappingClassSection.setClient(classAOrBComposite);
return classAOrBComposite;
}