Use F1 Help in DW. The PDF manual for CS6 will be out sometime later this month.
Custom Workspace ~
Snippets Folder is for storing re-usable bits of code. See screenshot.
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists
You can also use the FAVORITES tab on the INSERT toolbar to hold such things....
The above is called Tag Chooser in DreamWeaver cs6, and it should compensate you for the loss of all those great buttons on the customizable toolbars. But to tell you the truth, I'd go back to Homesite if only it had just a few of the modern conveniences, like Unicode support and HTML5 help...
Can you tell me how to get to this custom toolbar?