Singleuser / Multiuser ? Global scrobbling to each users account?

[gitgetgot]

Hello,
as far as I understand, you enter your last.fm credentials for global scrobbling be enabled to your AudioStation (AS).

Now, when a new user is set up for AS, and he enabled your fine plugin in his plugin-settings, all music he has listened to, is scrobbled to the global last.fm account, "hardcoded" in one of the .php files ?

can we think about having a single last.fm scrobbling account for each user?
(although we have to enter and manipulate more .php files for each single user, this would be better to scrobble all music to just one single last.fm account, I guess)

Each user can de-/activate his "own" textplugin.

idea1)
maybe we could fetch his username and compare is inside of the .php files an then scrobble to a bound account to his AS-username.
say, AS-user is "foo", we could check in a .php file for if username == "foo" and then log into last.fm with his own credentials.
maybe possible?

idea2)
would be installing a separate text-plugin for each user with his own credentials another possible solution?
say, we give every user his own .zip file with his last.fm credentials and he has to install it himself when logged into AS. may this work for not scrobbling to a global account?