List of chord diagrams for all chords used in a song

When reading sheet music I often see a list of chord diagrams (for all the chords used in that song) at the top of the score while just the letters of the chord are listed above the individual measures where the chords occur. I have been using the ctrl-K function to add the chord letters above the appropriate measures, but I cannot figure out a way to make that reference list of the fretboard diagrams for all the chords used in the song. Would somebody please let me know if this is possible in MuseScore, and if so, how to do it. Thanks for your time. --- MuseScore newbie