How do I add a product navigation to my mobile version in 7.1?

I'm missing a more detailed product navigation in my webshop (mobile version only) at the moment. I've added breadcrumps already, but it would be much better also to have something like back & forth buttons to switch between the products without going back to the main category or shop the whole time.

Does anyone have a code for this one?

best, k

shop link: katharina-vintage.com/shop

No way to do this automatically.

We can use code to add manually, but you will need to add code to all products (via Additional Info), and when you add new product, you will need to update the code.

If you still need this, we can give the code