Comment 5 for bug 379944

Agreed with Will. 1) is duplicate of bug 477324.

2) is fixed in Lucid since we no longer require people to unlock the dialog to show/change settings.
3) would be a whishlist bug, which should be handled separately. Not sure that will happen though, if you want to manage group membership, that what the groups dialog is for, we won't add more complex settings in the user part (but see how this fits better in the new GUI in Lucid).
4) is not a bug in users-admin, likely something with PolicyKit. You should open a new report about that if authentication doesn't work, we'll see what happens.