You can now package add-ons to display and sell through your Store. Easily create a package with a single add-on, multiple add-ons, or combine products and add-ons.
You will now see add-ons as options to select from in Partner Center > Marketplace > Manage Store. Add-ons appear nested beneath the product they belong to for easy identification.
In the Store, an add-on is shown with it's product in the icon.