You can do all that with the RapidCompser VST inside Biab RB. You can use the playable realtracks sfz or use your own VST making use of keyswitch articulations in a fingerpicking pattern, arpeggio pattern or a strum pattern that can be saved into the library and dragged in over any progression anywhere when needed.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
RC-Fingerpicking-Strum-Gen.gif (305.71 KB, 59 downloads)