@andyss There are probably a few things to think through on this one to avoid breaking existing implementations. I wonder if you have username and password enabled if you get an error message back specific enough to then try again with a username and password – the OG name and existing key could be then sent without requiring a UI change to hold a custom username and password…
As long as it tried anon first this would keep it from breaking any existing code. I can’t commit to working on this anytime soon (tied up with other things but if you want to take a stab at tweaking the code to do either this or just stick in your own custom info I am happy to help you – compiling your own firmware isn’t too hard.