Thanks, I agree. That's funny because I just gave basically that same explanation in another post about the 9th being implied as present in a 13th chord.

Had forgotten about this post. Just checked, and Maj7#11 is not supported in Version 2009.5.

I tend to over-write chords in my charts, putting in lots of 9s and 13s when the pianist says, "I'm going to play those anyway; just write it more simply." So, it's in that spirit that having Maj7#11 would be helpful without a shortcut needed. I agree, you'll probably hear BIAB play the same thing as it would for a Maj9#11. The second part of my request, to omit the 9 (or 13) from the chord would be an added bonus.

If nothing else, maybe BIAB can add the shortcut by default, so the program will accept the data entry instead of making someone scratch their head when nothing happens. It's OK if it turns into a Maj9#11. I'm used to these substitutions, where typing Dadd9 becomes D2, and typing D11 becomes D9sus.

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