Ken, that's worth stating the obvious, that one may simply type the enharmonic equivalent chord into the chordsheet. You can have F#Maj7 and GbMaj7 in the same bar.

I was making the assumption that the OP was looking for some BIAB command or process.


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