no this cannot be done with universal email or data assist.
To be honest, I don't know how this would be accomplished, but it is not supported by our tools.
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.