When mapkeys execute the menus flash up on screen; this is distracting, and slows down execution. In versions 2001 and earlier, the config.pro option "visible_mapkeys no" took care of the problem by eliminating the display of the Menu Manager menus. However, the dialog boxes and dashboards of the Wildfire releases are not affected by this option.
You can edit the actual text of the mapkeys stored in the config.pro in a way that removes the menu flash but preserves the function. This technique came from the PTC/USER email exploder from Donald Gibson in response to a question by Dami
Yea this is a nice tip, but beware when doing it. If something is removed that shouldn't be, then the mapkey will not perform correctly, if at all..and there is the possibility of PRO/E crashing as well.
There is a whitepaper in the works with the Technical Committees that addresses this issue (and many others) with Mapkeys