Scaling image based on 2 points? why my shortcuts always reset?

 From:  Matadem
11596.1 
Good day.
2 questions....
Let say I have an image and there a 2 circles on the image and I need to align these for exact measurements in Moi...is this possible?
kind of like scaling based on 2 points?

Also I have Moi4.0 and running Moi5.0 but it seems I change the shortcut but when I am going to use it it says plugin not found or If I setup a shortcut..when it does not work...check it..it changed to the old one.

Tnx!