BandInMuseScore - Accompaniment generator from chords, chord case

When I put chords on a score, I use usually automatic upper case. These chord typography is ok (ie am--->Am, g-->G...) but they are not recognized by BandinMusescore because there are seen as lower case characters. Is there a solution, except to type again all the chords on my scores?
(The the use of automatic upper case works wery well with the plugin Expand chord symbols into notes.)
Thank for an answer
jean-pierre