Our dev team answered: I was implemented in 8.1 version of the theme – IMPROVED: Single Product Builder gallery double image on mobile – https://xstore.8theme.com/update-history/ When you select this layout in the Single product page builder https://unatemplate.com/desktop.JPG , on mobile it will be like this – https://unatemplate.com/mobile.JPG It happens automatically, additional settings will not be added.
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