It would be very useful to have a simple (like in
'one-click' (tm) ;-) ) way of copying a user account --
an operation that would create a new account with ACLs
and groups of an existing one.

I would imagine it as an one more column in the 'User
accounts' table similar to Edit/Delete/View containing
a button that would create a new account and open it in
'Edit user account' form.

Something like these would greatly simplify adding a
batch of users.