On the DYNA 6 MF 6400 tractors how is the creeper gear (not super creep) range activated, lever or button? Also does it require the tractor to come to a complete stop to switch to and from the standard gear ranges.

Looking for one to haul a picking aid trailer and operated remotely. The DYNA VT 7400s can be operated remotely in "pedal mode" with a small electric hydraulic cylinder on the accelerator pedal to speed up (max 2 km/h) and stop the tractor. I know the DYNA 6 doesn't have pedal mode but can I rig something up to select gear changes and complete stop remotely?

Bit shy of buying a used 7400 VT due to potential cost from transmission trouble.

Your comments are appreciated.