The Measure Marked button in the LeapFrog / Relocation dialog box (Insert | Alignment | Leapfrog) only functions when you use the Measure datums option. It allows you to measure any selected features from the Used list. PC-DMIS will use these features in the Leapfrog operation. When you click this button, PC-DMIS displays the Execution dialog box, prompting you to measure the selected features once you have moved the CMM, not before.
The results box will display the 3D distance between the features taken before the move and after the move of the CMM. If you find the results unsatisfactory then you may re-measure the last set of features again as the button will now read Re-measure.
After you move the CMM, there is not a way to revert to the previous alignment. If the Leapfrog results are unsatisfactory after the Re-measure process, you must reset the Leapfrog and restart the entire part inspection process by executing the measurement routine from the initial alignment. The physical limitation of using a single CMM device makes this condition possible for all relocation methods. You should take great care during the execution of any relocation procedure.