I've recently upgraded to Version 17 of XWD. Now, when I publish my website as a Supersite, a new control appears at the bottom left, like this:

Click image for larger version. 

Name:	supersite-controls.png 
Views:	12 
Size:	8.2 KB 
ID:	126686

If I click "Do not show this again" it disappears, but can still be displayed by hovering mouse cursor in the bottom left of the website.

I don't want the control to display, but cannot find a setting in XWD to disable it. It also doesn't seem to be documented in the new program documentation or change list.

Does anyone know how I can turn it off, please? For now, I'm having to continue publishing from XWD 16 to avoid the problem, but that's not satisfactory long term.