[Zope-CMF] Information about permission

[mcolli@SyscomCipher.com.ar]

Hi,

I would like to know if there is any documentation that describe each
permission available in Zope:

For example, about permissions like:

"Access future content portal"  or "Access arbitrary user session data" , I
can imagine what they are for, but probably will not be the exactly what
they mean...

I do not understand for example the difference between "Access session
data" and "Access arbitrary user session data"...

A document explaining each permission would really help.

Thanks
Mariela