I am currently have an album somewhere and I pay them for it. The gallery allows an owner to create users. Every time you want to create a password protected album, you only need to select from a drop down list of users. So there is no need to re-enter password.

And once a user already have entered a password to a certain album, where he has an access as well, he doesnt have to re-enter the password. This gives convenience both to the gallery owner and the viewer.

I hope we can have a feature like this in the future

If I get you right this is about simple users, not multiple admins, right? Then please post a feature request ticket on the trac. We then add the request to our poll and if enough people vote for it, we consider adding it to our list.

yes, just users and not admins
thanks!