Thanks for taking the time to write in, and welcome to the Seller Community!
If you haven't already set up your delivery settings, check them out our get started guide here. When both pick up and delivery are set up, customers would see a pop up where they'd have to enter the delivery address to ensure they're eligible for delivery based on the parameters you've chosen. It would also be great if you could include a screenshot of what you're referring to by the tab for pick up, to check that we're looking at the same thing here. Please let us know how you go 🙂