The bags are not loaded on the right hand side (as in most airliners) but are loaded on the left hand side and not on the side of the number two engine (in hotel mode).
Well, they were on the ones I flew (back in CityFlyer Express days). I guess they can be configured differently. There was a forward cargo hold between the flight deck and the passenger cabin, and a rear cargo hold in the tail which was loaded through the rear RHS door opposite the main passenger door. That was the one the loaders didn't like using when hotel mode was running.
According to FCOM 2º part , 2.06.03,pg 2 you can refuel the aircraft with RH engine running in hotel mode.
Maybe it's allowed, but getting a refueller who wanted to do it was another matter.
I always wondered why the exhaust nacelles weren't designed to point upwards as on the Dash 8. I think that would have made hotel mode at least a little bit more user friendly (although the exhaust
was quite comforting on a cold and frosty morning).