Hi user 718. Short answer is that the end user probably cannot make the changes you mention permanent (or persistent). An audiologist experienced in using Phonak’s Target probably could, but may not want to do so.
Since my original post, Phonak has improved their app. I have used the app make my own custom settings based on existing settings. After a phone call or re-opening the app, I have to again manually select my custom setting, but I do not have to re-create it.
I have the same problem you do with Streaming, music in particular. I adjust the balance to almost mute surroundings. Next time I stream music, I have to adjust the balance again to almost mute the surroundings. Not hearing external audio creates a set of problems too.
As noted in my earlier post, I have made some minor changes to my HAs using Phonak’s Target. However I do not feel comfortable making wholesale changes to the setting and programs Target/Audiologist originally made.
Good luck with your HAs. I have been wearing them for twenty years or so now. These are so much better than my first ones. And way, way better than my Mother’s in the 1960s-1980s.
Brian