You should just see them in the new Library Catalogue seamlessly, as a list under "Saved Items and Lists".
In Stella Search, you could save items for later by clicking "Add to saved" (a shopping basket icon). That "Book Cart" would empty after you logged out, but you could save them permanently by creating or choosing a list and adding the item to it within your cart.
If you saved a list and it was of books, DVDs etc. - items that used to appear until the Books and More tab - then it is highly likely that this is fine in the new Library Catalogue.
It was only possible to save the details of articles - which are not something found in the new Library Catalogue - temporarily in Stella Search, and you couldn't add them to a list. However, other platforms like Articles and More allow you create an account there and save the details of articles etc. there for later retrieval.
