Bug 38570 Source generation wizards; Add button to open preference page
M1 The Getter/Setter wizard should offer an access to the Code Generation Preference page: Field prefix/suffix, getter/setter body content, method comment template Add delegate, constructor and override could have a button for the method comment template The code to open a preference page programatically can be copied from TodoTaskPropertyPage.showPreferencePage
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CodeTemplateBlock.java
/* (non-Javadoc)
		 * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
		 */
		public Image getImage(Object element) {
			return null;
		}
		/* (non-Javadoc)
		 * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
		 */
		public String getText(Object element) {
			if (element == COMMENT_NODE || element == CODE_NODE) {
				return (String) element;
			}
			TemplatePersistenceData data= (TemplatePersistenceData) element;
			String id=data.getId();
			if (CodeTemplateContextType.CATCHBLOCK_ID.equals(id)) {
				return PreferencesMessages.getString("CodeTemplateBlock.catchblock.label"); 
			} else if (CodeTemplateContextType.METHODSTUB_ID.equals(id)) {
				return PreferencesMessages.getString("CodeTemplateBlock.methodstub.label"); 
			} else if (CodeTemplateContextType.CONSTRUCTORSTUB_ID.equals(id)) {