As far as I know the TTS-1 sound module mixer settings can not be saved as part of the saved settings in a Band-in-a-Box song project file.

However, you can save TTS-1 settings in a TTS-1 performance file. One way to navigate to the performance file save and load buttons is to (1) open the TTS-1 interface, (2) press the System button, (3) press the Options button and (4) select the Options tab.

I've attached a guide to using the TTS-1 I've found very informative and useful.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
Clipboard01.png (161.48 KB, 202 downloads)
Access TTS-1 Performance file buttons.
Using TTS-1.pdf (2.01 MB, 9 downloads)
Using the TTS-1 Reference Guide

Jim Fogle - 2024 BiaB (1111) RB (5) Ultra+ PAK
DAWs: Cakewalk by BandLab (CbB) - Standalone: Zoom MRS-8
Laptop: i3 Win 10, 8GB ram 500GB HDD
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home