¡Solved!
I'm trying to activate the assistance/ emergency function on my new Instinct 2 Solar.
So I first need to set up contacts in the Connect app (android)
I can add/ import contact persons there from my phonebook. Once added I can change the numer once when it's not complete with the countrycode.
But after one time it seems I an't adjust it annymore. It seems to be locked. The line of the the phone number seems to look blacked and I can press whatever I want without being able to adjust or correct.
Contacts I've added to this list are also not able to remove. At least I nowhere see anoption for doing so.
So I'm stuk with contacts in this list whhich I don't want to use or I can't adjust to be able to use.