Given that the arrows are attached to a mouse in a three phase cycle, some function keys have been assigned the task of moving the patch around the bitplane independently of the cycle. Not only is their assignment unambiguous, it is always available, even when the mouse is not. The key sequence is somewhat mnemonic, westmoves getting the leftmost key and so on.
Some keys toggle the patch ( f10), or initialize it to the center of the screen; otherwise it retains its position from one usage to another, even when CAMEML is abandoned and reentered. It is a general characteristic of CAMEX menus that the position of their cursors is retained through an entire session.