@Marty It uses essentially the same thing (there are a few differences) but a slightly more complete version (developed by someone else, not me), found here (on the webpage, you'll see under Pen Events that there are more USAGE constants): https://github.com/jonathanyip/Surface-Pro-3-AutoHotkey Following the instructions on there is rather easy. The script I shared on Reddit uses PEN_2ND_BTN_HOVERING. Have you tried it? As I said, I haven't tried to play with everything but I think this can go a long way to providing enhanced functionality to the pens. And this being AutoHotkey, you can remap conditionally depending on the active program, etc. I'd be happy to help with any of this. I'm glad you like Toolbar Creator!