RDM Web credentials

Hello! I have issues with some services using RDM embedded.
On some websites, there's no submit button ID, [Enter] is working on some of them, on others it just won't submit form.
Some webpages are blocking submit button when there's no value in username and password, even after filling it, it is not clickable/usable by autofill.
Some services wont auto-submit form, and if I do it manually, it just refuse to sign in with reason: wrong credentials.
Sometimes autofill does not work at all, dunno why, because after short time, it works again.
It should wait for page to load and autofill after that, instead of fixed delay time in settings. On different connections it may take longer than usual.
And other scenarios I can not remember right now.

maybe you can implement more complex way to autofill these forms? Maybe let you for first time fill form manually and offer "save credentials" button? It seem to be not usable right now on many services.