Here's another one for you:
Consider providing a way to globally Send to Back or Bring to Front all instances of a master. I've run into the need for both recently.
In one case I applied a background image to most of the pages in a site. To do that I needed to open each page, select the master on that page, and Send to Back. That was harder to set up, but easy to maintain, as they stay put, and are out of the way.
In the other case, I have a dynamic panel that could appear over any page of the site (it's a "Sign In" form). That's easier at first - when I initially did Add To Pages it added them all "in front of" the other elements. That's fine, but as I'm working I've found myself dropping other things in front of the Sign In panel, or I've moved it to the back to work more easily, then forgot to to Bring to Front when I was done. It would be great if, before I generate the "final" (ha ha...) version, I could bring all instances of this master to the front. As a workaround I've removed the master from all pages, then re-added it, which does the trick.
Keep up the great work on this product! I've jumped from absolute newbie to designing a very complex site in about two weeks, with very little frustration (and virtually no learning curve). The prototype has been a great tool for internal design discussions, and for presenting concepts to the client.
Linda Eskin
"Ask. Observe. Think. Design. Repeat."