OSX Server - Advanced FTP users policies

Hi, I need to ask a pretty simple thing, that for servers should be quite straight forward.

On OSX Server (ver.2.2.2) I can't find any advanced ftp management console. What I mean is that i have let's say three users:

User "A": Administrator

User "B": Project Manager 1

User "C": Project Manager 2

User "D": End User

Folder 1, Folder 2, Folder 3 and Folder 4

User A should see and manage all of them (read+write)

User B should see and manage F1 ("F" stands for folder) and F2 (let's say he's in charge of those two projects)

User C should manage F3 and F4 (but no access to F1 and F2)

User D should only read F4.

I thought this was a reasonably obvious thing to have in the app, although I couldn't find any of these things. Maybe that's just me, but seriously I was thinking as this was an obvious feature for an app called "Server" that has FTP-server features.

Is there any way I can do that?