1) One server window per connected server (regardless of network) only
2)
on *:connect: {
if ($network == quakenet) { stuff }
}
3) the fileNAME does not matter, but yes, in the remote editor under ALT + R --> File --> New --> Drop the script you want to use into it --> File --> Save --> Choose a name and file extension and hit ok or save. (Sorry, I use it soo much I forget what it really says lol). Hope this helps you out