When you create or edit an add-on, you will have the option to “Show on listing?”
If this is toggled to “Yes,” that add-on will be visible on your listing and guests will be able to purchase it at checkout. For this reason, you should only show add-ons you’re positive you can fulfill.
If an add-on is only available sometimes, you can hide it by selecting "No" under "Show on listings?"
Hide from listing and checkout
If you can no longer fulfill an add-on, you can easily delete it from your inventory page by clicking “Edit” and selecting “Delete.”
Delete an add-on