Welcome to the seller community and thanks for bringing this up, @eandjtreasures. 💯

At this time, there isn't a way to add inventory by using the barcode scanner. I can certainly see how this would help speed up the process and I'll be sure to share your post with our Inventory Team. In the meantime, my best suggestion is to use the bulk import feature which will allow you to add multiple items at once: Upload Your Item Library.

Hope this helps get you where you need to be. Thanks for your patience as we work to improve and let me know if you have any other questions!