You see, no one was saying it couldn’t be done, only that as it stands now it can’t be done from the Remote if the Core is on a WIN10 or macOS machine. The capability to do this natively from the Roon Remote was what the OP was asking for, but that has been completely obfuscated.
For some reason, this whole thread got off track once it was misunderstood the it was about Nucleus.
Obviously, if one were using the additional software of a remote desktop, then one can do anything one wants.