I don’t Know exactly if it could be done in puzzles but I think it’s more an internal Verge 3D/Blender feature to manage. I tried with some of my works and I usually uncheck the panning because when you drag and drop your scene/camera it’s hard to get it back. Of course, I can do it trying to drag and drop again, zoom in or zoom out but the web it should be more friendly for our costumers or people who visit the web.
Yuri could tell us a bit more I supposed .
You can create a “Reset” button that will return camera to original pisition using Move Camera Puzzle. You also can use Limit Constrains to limit camera, but unfortunally it doesn’t effect on panning.
Co-founder and lead graphics specialist at Soft8Soft.