1. Click the "+ New item" button in the top menu
2. Fill up your item information on the Universal Form, which will automatically copy that information on all other marketplace forms. If your item is already live, you can import information easily using the "Quick import" feature at the top of the Universal Form.
3. Once your info is entered, go to the marketplace form you want to publish to, check if there are any missing fields (they will be marked in red if any), and click the "List" button.
4. Let the magic happen for a few seconds and your item will be live. You will see a link to the live listing at the bottom of the form.