There are so many types of scales in so many models, this is difficult to answer.

Do you have a keyboard that can record midi? If so, just go into real band and create a midi track and play the scale you want to practice, then save that file as a midi, and open up in BIAB.

The midi will play on the melody track. Click notation to follow along. Choose any style you want to jam with. Change all the chords to the root note, or enter the intervals I ii iii IV V vi viidim I, or anything else you like.

Another option. I see you have Mac. Get Finale Notepad for Mac, free and learn how to use it. Just enter in the notes in the score, and again save as midi.

Open in in BIAB (or real band) and follow previous instructions.

Any book on scales will show you the different modes.

Do it once and C and you BIAB let's you transpose to anything you want.

https://www.finalemusic.com/products/finale-notepad/resources/

As one example, I put a C scale BIAB file and a midi file in my BIAB drop box. Look for C Scale midi and BIAB C Scale practice.

https://www.dropbox.com/sh/y4ujowwpqh5y42t/AABnCcRP8YYL6ydXzoebe2Nza?dl=0

This is a basic C major scale for guitar. Each "session" up and down is preceded by four C notes to get you started.

You can change this to any style in BIAB, or change the chords over which the scale is playing, your choice.

But again, there are so many scales--such as various of the minor scales, that you should get Finale Notepad, learn it (it is easy) and just make your own exercises.

Hope this helps.