Good day, dal1cas2.
Thanks for posting here in the QuickBooks Community. I'm here to provide information about adding items in Products & Services.
At this time, the Product and Services section only allows different unique names per items. Creating items with the same name is currently unavailable in QuickBooks Online..
I recommend sending feedback for us to determine what works best for your business. You can send your product suggestions by clicking the Gear icon and selecting the Feedback option.
Should you have any questions, please don't hesitate to post a comment, and I'll be more than happy to assist you. Wishing you all the best.