orig_A and orig_B don’t have to be parameters, they can be variables or numbers in the code too. Maybe it’s easier to find them if they are parameters.
Another solution can be to resize the drawing to be 1×1 m, thus you can write
MUL2 A, B instead of
MUL2 A/1, B/1. A and B can be the original size of the drawing in this case.
Library Platform, Software Engineer