Qtvcp GUI and hal pins

I pushed some changes to master to fix this and much other stuff.

The fix for running macros with a button was two characters in the handler file.
If you just want to edit your's directly let me know and I'll give instructions.

I also added to the online docs to help.

Thanks for the report and please let me know if this is fixed for you.

Thank you so much for your support. You mentioned updating that on the main branch; I imagine you mean linuxcnc. How can I access those changes?
And if you could help me so I could make some modifications myself, I would appreciate it.

How did you get linuxcnc originally? What version are you using?
What mods would you like to do?

I'm using the latest available version of LNC 2.9. I regularly update my system, and the LNC version updates automatically. I initially installed it from the official ISO and also the DE.