xmatchKeyText.setEditable(false);
final Combo xmatchValueCombo = new Combo(bindingComposite,SWT.NONE | SWT.READ_ONLY);
xmatchValueCombo.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
xmatchValueCombo.setItems(new String[]{"any", "all"});
xmatchValueCombo.select(0);
//make some empty key-value fields
for(int i=0; i < 4; i++)
{
Text keyText = new Text(bindingComposite, SWT.BORDER);