I'm catching up on some old posts and thought I would bump this up for you.

Love the looks of your wall. Have you posted this in the paint forum?

I would think you could just dab on a bit of the glaze to the spots that need a touch up. Maybe the pros would have a better answer.

What do you mean by touch up? Is the bad place in the wall through both layers of paint? If so, you'd need to replace both layers. If not, replace the top layer only. You'd want to use the exact same thing in the exact same sheen, or it might show. If you did it yourself it should be easy. If you had a pro do it, why not call her and ask her to give you a quote on the repair?