1. No
2. Not for each server, but for each forum regardless of the server it sits on.
Articles in these areas of the GregHelp forum may help:
http://greghelp.991552.n3.nabble.com/Help-with-Nabble-f4012815.htmlhttp://greghelp.991552.n3.nabble.com/Help-with-Mail-Lists-f4012813.htmlNote that most of the articles are aimed at Administrators rather than your questions which are more user centred.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.