But there is a problem, and it's worth more than a short try...
(don't get me wrong; I appreciate your reply)
Attached is a DGN file where I've set up 2 exercises that should demonstrate the Mech Keypoint issue. You'll notice that while I was writing the verbiage for the exercises, it was discovered that this subject is more accurately titled "Mechanical Keypoints are Shrouded".
Please check out these exercises.
Thanks,
Jeff
(Please visit the site to view this file)