For some reason [doubtless by design] Opera's password pop-up panel does not allow copying the password to the clipboard to paste elsewhere; and in my case doesn't even show the complete password without needing to scroll to the end of it.

Now Opera has problems with some websites, and with password entry. I have used websites where Opera ignores the password field, doesn't save, nor fill in the word... even when it has it saved; other sites it just won't save it at all, and there seems no way to manually ADD a password to the password manager.

At times when it fails to populate the field, simply pasting the password in manually would solve this, but Opera does not allow copying from the password panel.
** This is unrelated to excluded sites; I only have one site listed as 'never saved'.