There is no 'magic counter'
I just run my cursor down the full Excel sheet (having already sorted it by lbm number) and read the number off at the end! Either that, or I count them manually (up to 4, IIRC!!!)
I'm aiming in my own mod to get down to a max of 10 uses per photo - but it's not easy. BTW, my own set
has BTR-D, F-80, WW2 Challenger - and many others.
Richard H