Apply case conversion except to comment field

Support
1

I am applying case conversion - Mixed Case - to my tags.
However, I want to apply Sentence case to my comment field.

At the moment I am doing this in 2 stages - the mixed case for all fields and then sentence case for the comment field.

Is there any way to do this in 1 step?

Or just being able to apply case conversion to all fields except the comment field would do just as well.

2

You can group both in one action-set so it's done with the click of a button.