This is a ridiculous question.  Just purchased this aircraft and when starting the GPU is connected to the airplane and I cannot figure out how to disconnect it prior to taxi.  Tried everything I can think of, but I never use a power unit starting any airplane.  Usually I start with engines running which is the way I set this up but the GPU was connected and can't figure out how to disconnect it.  Can someone please let me know how to do this.  Thanks.  Much appreciated.

Edited November 22, 20196 yr by C130FE

I think I've figured out the problem.

The pop up menu?

I assume you found that just clicking on the left console button toggles the GPU.