Yes just follow this guide
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=374613
set the chord output range to 72 to 96 (you can also transpose by octave in the piano roll so it's in the right range).
Then just draw the keyswitches to set or change the pattern.

You can put a +1 here https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=578526

Attached Files (Click to download or enlarge) (Only available when you are logged in)
BB-IRON.png (471.52 KB, 77 downloads)
BB-IRON.gif (221 KB, 77 downloads)