Some sites don’t accept your full password but rather ask you for specific characters, e.g. 3rd, 5th and second last characters. Banks are particularly bad for this kind of behaviour.
Currently, and especially if you’re generating longer passwords, it’s difficult to figure out which character is in which position. The only thing you can really do is manually count, which is tricky. Or worse, copy your password to another application to make counting it easier.
It wouldn’t take much to have a small indicator above or below the cleartext password that highlighted the position of each character. It would ideally have alternating shading on even and odd placed characters for quick readability as well.