At the moment, users will need to do this item-by-item.
It is necessary for our users to be aware of all the variables in order to avoid confusion and issues related to the product they are selling. This way, users get to view all the important details of each product, as well as understand the shipping information and the return policy before adding them to their store.
While users still need to import each item individually, it is possible for users, however, to publish items in bulk. To do that, please follow these steps:
Go to Imports List
Review currently imported products
Click on Push Current Page button
Select Push All and wait for the confirmation