The Product Upsells module is in the WooCommerce modules category, which appears only when you're editing a Singular-type layout in Beaver Themer and you've assigned a single product page as the location.
If you have selected products for the Up-sells field on the Linked Products tab for your product, they are displayed with the heading You may also like...
If there aren't any upsells specified for a product, the module is not displayed in published output. If you preview a product in the Themer layout that doesn't have any upsells associated with it, you'll see the placeholder
This module has only an Advanced tab, on which you can customize margins, responsive layout, visibility, animation, and assign an ID or class name.