yes welcome Dave,
the Pro Tools Expert blog is another good source of info
http://www.pro-tools-expert.com/
and they have a link for a $5 5 day all access pass to Grove 3
there are some helpful videos on youTube but there is also some non-helpful videos
but for your multi plug-in window question there is a bright red box at the upper right corner of the plug-in window. click it so it goes dark and then open another plug (some goes for floating send windows)