You can use the Mate pop-up toolbar to add mates in the graphics area. 
		
			
			The Mate pop-up toolbar appears with a default mate selected. 
			To enable the Mate pop-up toolbar:
			
				- Click Mate
					 (Assembly toolbar) or
						 to open the Mate
					PropertyManager. (Assembly toolbar) or
						 to open the Mate
					PropertyManager.
- On the
						Standard tab,
					under
						Options, select Show popup dialog.
- Optional: Under Options, select Show
						preview to move the component into place to preview the
					mate.