Taz 5 and Orca Calibrations

Hello,
I am trying to get a Taz 5 configured in Orca slicer. Orca has several built in calibration tools.
One of these calibrations is for Max Volumetric speed. Orca Calibration Tools
The way it works is by increasing the speed as it rises in z until it fails then you measure the height at which it failed and with a little math figure out the correct value.
With the stock lulzbot 2.0.0.144 firmware the max speed is locked down and I cannot successfully run this calibration.

Will switching to DO firmware allow me to complete this and the other calibrations?
Thanks!