Assigning Propeller RPM to controller?

[xray20]

Hi,

Sorry this is a really dumb question.

Mustang TF-51D

I want to assign the Propeller RPM control to my throttle (HOTAS Warthog).

I don't think I'll have a problem with the assignment (everything else is fine), but I cant find what the Propeller RPM is called in the 'adjust controls' settings. Its not listed as 'Propeller RPM' (as with the cockpit tooltip) and I have been going through the list for nearly two hours now trying to find what else they could have called it. I cant belive its not mapped. It must be one of the most important controls.

 

Thanks

Matt

[VH-Rock]

Engine RPM

[xray20]

Duh..

That's got it. Thanks