yes, if you select a form element, the go to Insert -> Spry -> Spry <element type> (where <element type> is the same type of element you have selected)
it will convert that element to a spry element.
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.