fModifierEditor.setEnabled(false);
	void initializeFields() {		fShowHoverAffordanceCheckbox.setSelection(fStore.getBoolean(PreferenceConstants.EDITOR_SHOW_TEXT_HOVER_AFFORDANCE));		Iterator e= fCheckBoxes.keySet().iterator();		while (e.hasNext()) {			Button b= (Button) e.next();			String key= (String) fCheckBoxes.get(b);			b.setSelection(fStore.getBoolean(key));		}	}