Why should you want to up two notches. Seems uncomfortable to me.
As Raudrive proposes let your Audi put the volume up so it stays there. It’s an easy settings programming future. And available for every program you want to have it.
But in normal use I’m glad the settings return to the in Target programmed settings. So the user can do some stuff by himself.
You could try to make changes when you are in automatic and go in a place where the automatic sets in (silent place or noise etc.) Then open myPhonak, go to change programm and there go to volume louder or softer. Change the settings over there and “save as” in. There you have is to make a programm by yourself.