I've done a search but found nothing on this topic. So I beg for assistance.

I have found a Jogball screen that I copied and pasted into a screen for my set.
The Issue is I have one jogball that gives me a B & A but I can not see how to set it to B & C.
The only options I have are XYZ not sure how someone created a B & A Jogball. I like it but I really need B & C.
Whats the secret please.
By the way; I do love MachScreen... Thank You Klaus
keeps getting better with every release.
Thanks for any guidance on this feature.
One more thing is there a limit on screen physical size (MB) and how mach3 preforms?