I havent tried this myself yet, but I had the same thread going... same situation.
My new friend, Greg (formerly ill-percieved opposition:~)) pondered about it for 2 seconds,.. and said.. Wait! cant we could do this?
He promptly coupled up a couple of buttons to inputs and dedicated them to Z+ and Z -
As he ran "Roadrunner", the DRO's on Z went up and down . Admittedly, we were not running the machine... just checking the DRO's.
If THC can manipulate Z height in flight.. why cant buttons emulate the same?.. manually like when we use Oxyfuel?
Instead of hanging over the hot sheet and trying to prevent a "head Crash" which becomes intiresting to watch when the traverse is 15m/minover a 14meter plate and the nesting was done to cut "all over" to prevent plate warping

Thanx Greg, I hope it works in real time. I havent tried t yet