You can manage your preset menu's with the preset or layout manager depending on the version you are using. You can find this at Insert > WebAssist in DW. You will see a list of the presets and you can add, remove, import, or export these presets.
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.