If I remember correctly you need to use a AutoHotKey script to copy the chord name to a marker move to the next chord....
this will give you the chord track as markers, then you would need to export a midi track containing those chord markers, I don't know if Cubase gives a drag export option and write the markers to that file ??

You maybe able to do it manually by using shortcut keys to move to next chord > edit > copy > insert marker at that location > paste > move to next chord....