1. On the Items page, click the "Add items" button and select "Add manually"
2. Fill in all the required information about the item you want to add
3. When all the information is filled in, click the "Save" button
4. That's it, your new item appears in stock and you can list in at any site you want.
5. If you want to create an item based on the template of another one, select the item and click the "Create Similar" button.