The beta version 3.1b14 RC has now got better import options.
It's not removing the count-in bars unless checked.
So to get the chords only I select the BB Chord Output track only.

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RC_3.1b14_midi_import.jpg (195.91 KB, 164 downloads)
RC_3.1b14_track.jpg (148.05 KB, 162 downloads)