When your first register your account, you will be asked if you would like to import items from your Saved Titles List in the old catalog to your For Later Shelf in the new catalog. Select Import List Items to begin the import. You can also do this later from the For Later Shelf. All imported items will be marked private.
You may notice a difference between the number of items on your list in the old catalog and the number of imported items that appear on your For Later Shelf. This can happen because of adjustments made to the catalog records during the transition. If you had multiple Saved Title Lists in the old catalog, they will be merged when they are imported and will appear as one list on your For Later Shelf.
Once your import is complete, you can sort your items, moving them to your completed and in-progress shelves. You can also use your import as inspiration for new lists, using the Lists, opens a new window feature.