Just to clarify a few of these, are you using the + as a #5?

m7+11 could mean m11 #5, or m7 #11 depending on how one uses the + (which is why I don't use it). BIAB has its own conventions on how to interpret it.

As for the 11 chord, it is already supported. There is an option to control whether it displays as 11 or as 9sus in Opt, Preferences, Display.


BIAB 2024 Win Audiophile. Software: Studio One 6.5 Pro, Swam horns, Acoustica-7, Notion 6; Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus Studio 192, Presonus Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors