Picture Zoom feature

I'm trying to figure out how the zoom feature works - haven't been able to see any clues as yet...
Thanks

I am trying to find it as well in the demo shop. But no luck. Can this be highlighted please how to configure it. It will be a great feature to use.

https://www.nopcommerce.com/boards/t/5109/nopcommerce-v170-released.aspx?p=2#20833

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Thanks!
Picked it up now.