Glow plug control on/off?
 

Is it possible to disable the glow plugs with tuning?
Instead of hard wiring a switch, just flick the chip switch to a gpr-less tune to shut them off?

Glow plugs are operated for a period of time, based upon EOT; and the duty cycle is based upon battery voltage. I don't see why you couldn't set either the time or duty cycle to zero across the board to disable the glow plugs with tuning. Super Duty rigs would even have the ability to disable the glow plug light in dash, OBS doesn't have that option though.