Yes, this is how I just tested it.

Typed in chords and chose blank 4/4 style. Generated Piano RT and used copy/move tracks from "edit" menu, to copy Piano track to melody channel. Rechannel the midi events in the piano roll to channel 4. Then I used the melody edit menu to "adjust level of melody" a couple of times to get the volume levels up. I saved it as type 1 midi file. Opened it in RB and it worked.

Trax