Which oil for clutch soak for Rekluse Radius CX

[Abercrombie]

Alright flame away at my stupid question but here it goes. I'm installing a Rekluse Radius CX clutch in my 500 RR-S and need to pre soak my clutch plates. Since this is my first bike with two separate oil cases I just want to make sure I'm using the right oil.

My question is, Do I use Transoil or motor oil for a clutch soak?
I believe that the clutch is lubricated by the same oil as the gear case so in that case I would do the clutch soak with the Motul Transoil Expert 10W40? I'm assuming that the engine oil Motul 4T 7100 10W50 does not lubricate the clutch plates in this engine?

[Deck1]

Clutch and trans are the same fluid compartment. Use the Motul Transoil Expert, if that is your normal oil on that side. The thing I have to check constantly, is which drain is which. I think I will mark one with a C for crankcase, and one with a T for trans, during the next oil change.