Not possible to add authorized key or access full addon config

[littleBigMen]

First of all, i can use web interface ssh to see authorized_keys file, but in addon configuration it is just ssh part, port part etc. Graphically separated. Can not add log level for instance :_( (very annoying!)

How exactly can i add authorized key using addon configuration tab? I have tried all i could think of and still no luck
"ssh-ed25519 CFDCSFSSFDSAFDSAFASFDSA..." do i need to have user name at the end of public key?

even when i resolve auth, i want to be able to access addon config file, where i can find it please?

[littleBigMen]

2 weeks, 0 answers :(

[littleBigMen]

With some helpful info here
https://community.home-assistant.io/t/debugging-the-home-assistant-ssh/805473

resolved by using GUI and add in format:
ssh-ed25519 AAAxxxxxUg0W dajohn@steamer2

(username or computer info is irrelevant, you specify username for ssh session)