The reason we went to this close method was to 1) support a faster workflow, and 2) to decrease potential confusion. You can get to the layout editor from different places and to try and maintain the state and return you to the place you came from is difficult and it adds a lot of "special case" type code that is difficult to maintain.
The good news is the workflow is still just one click to get back to Prototype, you just don't click the close button in the Editor. There's really no need to click the close button, but we have found that when we didn't have that button available it was disconcerting. Since the editor is always autosaving (which it needs to because this is a web app and we want to write data back to the server), you can just click the Prototype tab when you want to select a new page. The new page will close whatever is in the Editor and open the new one. The old page will also be added to the Recent Pages list found under the File menu. This simplifies working with Templates because the Template and the Page will both show up in the Recent Pages list and you can quickly switch back and forth between them.
It takes a little getting used to, but I think you will find it just as quick as before. Of course, let us know if you don't! We always appreciate feedback.
Site9, Inc. / ProtoShare Product Manager
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