I don't know if I am committing a forum sin with this (new here) but I am doing something similar with an external numpad using HidMacros (http www.hidmacros.eu) and AHK. Maybe this could work for you too? I've used a few other things such as HIDMacros and Intercept, but no matter what I'm using, I...

I'm using a standalone USB numpad for macros, and I never had a problem with it while using Intercept. But with AHI, I have a weird problem where the script will become less responsive/reliable over time. When I first run the script, it's smooth as butter— I can spam keys on the numpad and all the m...