Can I list several restaurants on one page, like an online food ordering and delivery platform?

No, and that is on purpose. Each restaurant gets its own page, its own menu, its own WhatsApp number and its own orders board, so nothing is shared by accident. An online food ordering and delivery platform with many restaurants on one page is a marketplace, and it keeps the customer. If you own several branches, we can group them so you see their sales side by side at /branches, but each branch still has its own page and its own address. The Account, trial & billing tab in the docs explains branches.