Service Mode to disable P/T in roadcase?

Hi folks, another Q for you all.

Does the DML have a service mode that disables P/T so you can power-up
in the flight-case? ie. similar to the Macs ENTER and MENU on power-up.

Perhaps an option for future firmware? A nice quick way to do it.

From the manual I see you can disable it, but not sure if it would spin up/reset
before you can access it in the manual.

Kyle.