Definitive classification of users of Plone

I have often the request from my Users to add an Folder/Area with Password Protection for a cuple of Anonymous Users. The Access is limited by time. A normal User in Plone can change the Password and set the own Properties of the Account. For my usecase these are too much rights. Actually i need a Authenticated User only with a View Permission. I call that Minimalistic Authenticated Anonymous User :wink: