You'd need. MC SYSGEN CONNECT CONSOLE to make that happen.
True, but having done that you could access it from VMS just fine. Ditto
for the TU58 drives that were used as console media on the 730 and 750.
Directly connected UNIBUS RX02 drives showed up under VMS as the DYA0/1
devices as you'd expect.
I can't remember whether the RK05 was supported by VMS?
No, not AFAIK but the RL02 (either on an RL11 or the RB730) was.
Bob