I'll bet even Microjig hasn't thought of this
I recently made a table saw crosscut sled with a matrix of dovetail slots for various hold downs, etc. I had a nice moment when I realized that I didn't have to get down on my knees and keep screwing and unscrewing the fence when using the five cut method to test the fence for square. I hate doing that! All I had to do was use clamps in the dovetail slots.
MIcrojig should cut me a check!

