its in the Mach4Hobby/modules directory called mcTouchOff.lua, all 292k of it. Enjoy!
I do not seem to have any *.lua files on my mach4 computer at all. There are several *.mcs files. Could it be that these are the same as the *.lua files?
Also, I found that i do not have ANY files named "mcTouchOff" regardless of the extension.
I watched the tutorial video again and they show the touch module behaving exactly as I need, but that does not happen on my instance. everything stops when the touch plate is touched. Also, sometimes (not consistently), the "disable" button is triggered.
Everything else, a far as I can tell, works exactly as I would expect.