Flip Part Over

Flip Part Over

I have a 2 sided part.  All my datums are on side A.  I align my part normally using the datum structure.  I want to flip my part over on the CMM table mid program, then remeasure some repeatable features just like Leap Frog works, except I want the CMM to understand that I've flipped the part on the table so that it can reach more features.  I understand Leap Frog, I don't understand how to tell it that the part has been flipped over and side B features are now facing up.