How do I invite someone to view or edit my tour?

Open the tour's Settings tab (in the Advanced view), type the person's Email Address under Project Collaborators, choose an Access Level and click Share. A Viewer looks at the tour, its Preview and its Analytics; Editor, the default, also changes panoramas, floor plans and hotspots; Admin, for a client who should design too, also opens Design, Settings and Publish. Someone with a confirmed account is added at once; otherwise the invitation waits 14 days until they sign up with that address and confirm it. Only the tour's owner can invite, with a confirmed email address of their own (Share sends you to Check your inbox until then), and not on a guest tour. On Free the person you invite must be on Pro, Agency or Enterprise; from a paid plan you can invite anyone, with no limit on how many. To give a client the tour itself, see How do I hand a tour to my client?. Invite collaborators to a tour has the roles.