The pause button retracts the head and eventually turns the spindle off, might be able to make a giant red button to hit that sends that command to the board? The 3 has an interlock where if the door opens it acts as the pause basically. I wonder if something similar could be wired up for the 883 pro? I know the OG 883 had an e-stop button, but can’t find (currently) how to remake that functionality going forward. @WillAdams may know (sorry I keep paging you Will). I’ll keep searching though.
Edit: @nwallace did one for a contest. Big red button shut off the machine, above the big red button sent pause: Community challenge #15: Workshop accessory (closed) - #28 by nwallace