I recently watched a video by Davin Bennett about changing the chords and notes of a song from major to minor, and vice versa.
It is sometimes not as easy as you might think. I tested this on one of my own “songs” and found it quite difficult and complicated.
Can Scaler help?
Scaler is excellent for changing songs from major to minor. This is called modulation and you should use the MOD page.
In response to your query I have uploaded a tutorial on Modulating Progressions from one Key to Another.
I also recommend the on-line Scaler Course has an excellent module on Modulation, where @Tristan explains all the types of modulation very clearly.
I was actually hoping for a one click solution And I did try something like you suggested but gave up after a while and did everything manually in Logic. The main reason being that while I could probably fix the chords in Scaler I still had to manually change all the rest of the notes on other tracks.
I will however go through your great tutorial, step by step, as I am sure that there is a lot to learn.
And btw, I bought the Scaler course upon its release but have so far only watched the introduction