I notice nobody here is directly answering the original question which is basically how to use Acid Pro 7. Changing the loop to Am is easy but the other question about the "Scale feature" has no answers.

Same problem I had a few years ago. There isn't much online to help with this program.

Now the bigger question is, is Acid Pro even relevant anymore? Is it worth digging into? For those of us who know nothing about it that would require some real work and I wonder if it's worth it.

All DAW's work with loops now including Biab and RB. The cool thing about Biab and RB is the loops do not need to be acidized and Biab will take the loop and it will follow the chord grid as to the key. I don't think it can change a major loop to a minor.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.