[n00b] User flags question!

[whocarez2k5]

A real n00b question i think but i can't find the right answer for it.
When i add a user he get' s by default the flag 3.
What is this type of flag and what can you do with this flag?
I actualy thought there where only flags like M,G,L,F,f etc.
Not only do i see the flag 3 but also 1 and H etc, but unable to trace what there function is.

For example i want a specific user or group to up and download, rename, NOT dell, let them do some site cmd's and maybe also some speed settings but how do i do that, anyone?