@educatingsavvas - We designed one for our CNC machine. Controls the Duet through a Windows PC if that helps?
Can be seen here: https://www.youtube.com/watch?v=uTOzbgphKCg
OR here: https://www.youtube.com/watch?v=wAHG86Fhl7w
We added a setting where yoy can turn off buffering (so you don't queue up commnads).
You can also execute all your macros from it.
Cheers
Joe