Hey 👋🏻!
There is very simple way to do this:
- In admin dashboard, go to "Design → Positions" and in the top right corner click on "Transplant a module"
- Select module You want to hook (Cross-selling)
- In "Transplant" search for hook displayShoppingCartFooter
- Save!
That's all. I hope my advice has been helpful to you.
Good luck!