Doors that lead into an outside 3D walkthrough without leaving your tour.
A 3D walkthrough of a building joins your tour as a point on the map, the same idea as a Street View point. Open 3rd Party Tour in the left rail, paste the walkthrough link and press Check, then press Add as a map point and tap the map right where the door is.
Then connect it: stand on a nearby point, face the door, and aim a point tag at it, exactly the way you connect anything else. That connection is all the tour needs.
There is no icon on the door and nothing extra to learn. The same round disc that guides every step of the tour treats the doorway like any other path: when a visitor faces the connected door, the disc’s arrow swings onto it and lights orange, and one click walks them in. The walkthrough opens inside the photo area, on phones too, with a Return to Tour button so they can always step back out. If the walkthrough refuses to open inside a frame, an Open in a new tab link is right there and your tour stays put.
The Placed 3D Walkthroughs list in the 3rd Party Tour menu shows every walkthrough point in the tour. Each row carries two buttons. Edit opens that point's own editor, where you can rename it, change its walkthrough link, and press Show on map to find it on the map. Remove asks you to confirm, then retires the walkthrough and leaves a plain map point you can delete like any other. The point is a real point, so you reposition it by dragging its pin on the map, and it renames here or in the Points list.
If a tour still carries walkthrough tags from before this feature, the editor converts them on its own the next time it opens: each tag becomes a connected map point at its door and the old tag is cleared away. A small message tells you when that has happened.