how do i edit layouts that are already on a server i have admin control over them

you can't "on the fly" unless you are the host, admins can't on a remote server

carful if you do it when people are still driving. I had a person who diliberately put barriers infront of my car while I was driving.

Quote from Jakg :

you can't "on the fly" unless you are the host, admins can't on a remote server

Jakg, admins can on a remote server, as of the W9 test patch