Have been asking for that for a long time "Write BWF (bext) chunk".
All the Markers will save in a midi file, if you have no midi just create a Metronome Track.
When dragged into REAPER it will ask to Import Midi Markers.

I have been asking for a Copy Chords to Markers command, so when the Midi is Exported you will have the chord track in your DAW.
I asked for it in RapidComposer, RealGuitar and some other app and they put it in.