Adding chords

I have a trio and I want to add a base (continuo) to it. The bass players do not like not having a part. Though as recorders players they all play another instruments, they can all play SAT and B.
I am not very good at theory. So is musescore capable of labelling the chords in the orginal music?
I have had some success using Chordify but that only takes a one note theme to create the chords, whereas I already have three.