@mick_s Yeah, I was also using “home” to refer to the zeros, but I could see it was causing confusion when reading the posts on this forum. So now I try to make the distinction between the two. It was especially a problem when you wanted a user to home the machine and not bring it to the zeros.
FYI, check out Controlling gSender with a tablet - Add-ons & Modifications / 
Others - Sienci Community Forum for my attempt to use Touch Portal as a remote pendant with better spaced buttons.