By you having not been around recently, you may be interested to read these and other threads revolving around software programming changes that require additional regular mixer channels that act and look same way as existing channels do now. They are requests intended to make BIAB perform close to how recording is done in today's recording environments using modern methods. Here are some recent discussions posted in the Wish List Forum. Dr. Gannon is aware of these and commented positively regarding this popular request.

https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=596442#Post596442
Select bars -> drag to DAW / Frozen Bars to DAW / re-arrange frozen sections in BIAB?

https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=600974#Post600974
A Couple More Empty Tracks In Mixer ~ Please

https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=593385#Post593385
Multiriffs, regenerations / Bar Freeze (Bar-by-bar regeneration) - THE MIXER!

https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=594332#Post594332
my xmas wishes lol

In respect to your request for more backing tracks in BIAB Styles, you don't have to wait for the next version release or update that includes additional Mixer Channels to enjoy the benefit of having additional backing tracks to any style. BIAB styles have been capable of having as many as 70 instruments available and included in any style since at least 2014. Each BIAB Mixer Channel can have up to 10 RealTrack instruments per track. These instruments can be programmed to change every number of bars such as 2, 4, 8; change every Chorus; Change every part marker or manually programmed to change whenever and however you desire. Instruments can sound out simultaneously or consecutively and PG Music enhanced this feature both in the 2019 and 2020 versions, adding panning and volume automation and new styles among other things. Any Channel can only use one sound media type per channel. If a track contains a RealTrack, you can add 9 additional RealTracks to that channel. Sound media types cannot be mixed onto the tracks.

Another BIAB feature dating back to at least 2014 provides the BIAB Mixer to create Stem Mixes in a few easy steps:

. Arrange the mix,
. Export the mix to audio,
. Import the audio stem to the Audio Channel and
. Convert and move that audio stem mix to any BIAB Mixer Channel.

Dozens of Stems can be created and saved in minutes for use in any DAW. Stems can be created from every type of sound media BIAB recognizes or any combination of the various sound media types like MIDI, MIDI Super Tracks, Loops, RealTRacks, RealDrums, Samples, Pre-recorded Audio and Live Audio. Stems can be a single track with or without effects or VSTi's; a mix of two or more BIAB Channels that can be any combination of sound media types BIAB recognizes, midi, midi super tracks, loops, samples, RealTracks, RealDrums, Pre-recorded or live audio. Stems can also be created solely from within BIAB from previously mixed groups described above.

BIAB 2025:RB 2025, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.