[Chilli] coova-Chilli Peers Peerid Peerkey benfit of all

[Varand Haghnazarian]

Hey People,

i hope you can help.
before i start sorry for my bad english.
What is the Principal and the benefit of the multi coova archtitecture. 
How it works?
And why just 7 peers? or are there more possible?
for what is peerid, and for what peer key?
And should i use another ip-network for every coova instance?

Sorry but i think the online documentation is a bit outdated or iam just 
lame.
so i hope that somebody can help........................................
Thanks before!

Regards

Burnerx