GoZyncHosted doesn't have any file references to your hosted solution (your "mothership" files) but it does contain your configuration instructions, so you don't want just any user messing around in there. We've created two privilege sets in GoZyncHosted: "Administrator" and "Sync". Administrator lets you admin licenses and devices, and and "Sync" is a lower level access that lets users sync but not change the sync settings. We recommend you default GoZyncHosted to the sync privilege set, and then log in as an administrator user when you want to make changes to the sync settings.
To do this, open GoZyncHosted and run the script "Manage File Options" from FileMaker's Scripts menu (you'll need to be logged in as an administrator). The under the "Open" tab, enter the default Account and Password for the "Sync" privilege set: both of which are "Sync":

John Sindelar wrote:Awesome, Peter. Thanks for letting me know.

You can't edit most of the scripts in GoZyncHosted, so the normal ways of having the Sync account go to another layout won't work.

You can, however, edit the Configuration layout. And since the Sync account can't get into layout mode, you could do something as simple as moving the interesting parts of the Config layout outside the layout bounds, leaving visible something that looks more like a splash screen. Then, when you need to make changes, you could come in with your Administrator account, move the good stuff back into focus, and make your changes before hiding it again.

=)