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Duplicating CMS collection pages

I need to duplicate CMS collection pages for a restaurant website with multiple locations. Redoing each menu over and over again is an absolute nightmare and way to much work. How is this essential part of a cms not available. Anyone have any ideas? I’ve looked and tried many things but nothing is working. Seems like it should be the most basic thing ever, just switch what collection and that’s it.

Here is my public share link: LINK
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