This is an update Adobe did in Dreamweaver. It is their standard file browse dialog. Our extensions will work with CS6 and the old Dreamweaver.
In the current version you have to add either the page name or parameter manually.
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.