/**
	 * Add, Create/Link: always enabled
	 * Edit: enabled if 1 element selected (entry or filter)
	 * Delete: enabled if selected element is entry
	 */
/**
	 * Add, Create/Link: always enabled
	 * Edit: enabled if 1 element selected (entry or filter)
	 * Delete: enabled if selected element is entry
	 */ | CLocationTab.java