I don’t recall seeing this question before. To my knowledge, there is no way to do this in BIAB. You might consider doing a post in the Wishlist Forum here.

Since you mention Rendering, I’m assuming you want to direct different MIDI tracks to different virtual instruments, and you have multiple MIDI synths to give you each of the sounds you want. Is that correct?


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.