Hi there Armin - I would have a similar feature request for an infinite scroll scenario. Basically: imagine the typical landing page with a grid of project thumbnails. When you click on one of the thumbnails and it opens the subpage for that project (either as an overlay or as a "new page") - once you scrolled to the end of that project subpage the thumbail grid of the landing page will appear again.
Exactly like on this website: https://www.franzgruenewald.com/ (status 22.10.2025)
Feel free to contact me in case that is something you'd custom code.