Suggest previously used username

Since BW, unlike LastPass, in most cases doesn’t prompt to save newly entered credentials, I have to enter the credentials manually. For that, it would be great if the username field had auto-suggestion based on the recently used ones (in most cases, that would be one of the emails I use).

I guess this could be either automatic (like your said) or manual (option to define list of username/email suggestions). Either way, this would be really nice addition!