Is there a command? (2 replies)

I have 4 Z stepper motors.
Is there a command that I can move just one motor?
The reason why I want to do this is because, Z3 will not move.
The brake turns on (Z3) when i try to move Z axis. All other motors turn as expected.
It's not the Stepper Driver, motor or wiring, I have swapped Z's around and it's only the Z3.
I am running an SKR 1.4Turbo and BTT_EXT_MOD

Thanks