I too was confused about VOR2 - never seemed to be able to get an indication. Funnily enough I could control it through a SpadNext gauge I have which manages NAV1 and 2... If I tuned on there, the co-pilot VOR worked as expected but the RMI did not aside from showing DME.
Now I know there is an on switch - undoubtedly mentioned but missed by me in the manual :-) - I shall try that when I get home.
This plane is a beast but my goodness, what fun...