How do I install Add-ons?
http://softimage.wiki.softimage.com/xsidocs/addons_WorkingwithAddons.htm...

What is a Workgroup? How do I use it?
http://softimage.wiki.softimage.com/xsidocs/hh_start.htm

What is a self-installing plug-in?
http://softimage.wiki.avid.com/sdkdocs/cus_self_WhatisaSelfInstallingPlu...

How do I run a script from the Script Editor?
http://softimage.wiki.softimage.com/xsidocs/script_basics_RunningScripts...