This does not look to be covered in the Getting Started Guide but is mentioned in the help in the topic CSS Form Builder reentry under Using CSS Form Builder. This help is available from the Help > WebAssist menu.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.