No. In fact, the way Nuendo does this makes it even less convenient compared to Pro Tools (are you listening yet Steinberg?).
Using RX Connect you can select more than one event, but only one will be sent to RX. So you select your event, open up connect, choose ref/rep, then hit “process” - at which point the window closes!!! You do your processing in RX and then when you click “send back” it tells you to go back to the host (Nuendo) and open RX Connect again!..
Famine, war and single malt with ice cubes are all worse than this, but it still seems like such a very simple thing to fix, yet here we are, and not a single word from Steinberg (as usual). It’d be a huge improvement in workflow for several people.