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HELP: Seamless changing collection pages without scrolling to TOP

Hello,
Because the Collection List and the Collection Content are on the same site in my design i have to do a seamless page transition, because changing the Collection Page content inside the same page is not possible.

I know there is a way you can do “Seamless pagination” .

My Question is if i can use this for a Collection Items.

So if you watch here you see every time you choose a item the site refreshes and is now at the top!

Does anybody know a fix for this?