It would be nice if markers were embedded into the broadcast wav files when exported from Dorico. My workaround is to import the audio into my DAW, add the markers there, and re-export from the DAW. Obviously, not the highest priority feature, but it would theoretically be easy to implement since markers already exist in Dorico.
A related feature would be to embed the tempo/time-sig map into the BWAV, as well. Not sure if there’s a standard, but I move bwav files back and forth between Logic Pro and Reaper, and the tempo/time-sig info always comes through nicely. Using a MIDI tempo map is a fine workaround, but the bwav way would be a time-saver.