Send Chad a Private Message, maybe he has the same email to receive the message.
Turning the transmission without turning the rear wheel, maybe put the transmission in neutral and turning the clutch. Maybe the resistance in the transmission would move what you need to line this up.
The only way to not turn the rear wheel is having the bike in neutral other than removal of chain. Guessing they mean the countershaft sprocket does not need to be engaged so that is back to putting the bike in neutral.
Start searching youtube for videos, maybe someone will give you an idea how this is done. Then you can let us know.