Can you give us a lever feature that maximizes the speed of the unit the the default speed or lesser speed, also add another lever feature that sets the unit to reverse or forward, also set a lever feature that sets a unit to only turn left or right to default.
It's a button available on all units found in the mainframe, a feature only I alone wish to make possible for my own units though and would rather you give me existing guidances.
If I ever learn the unit making methods I would play as my own factory and coms.