A shop's own tour, opened from its front door on yours.
Your tour shows the street. A shop's own tour shows the inside. Linking them lets a visitor standing at the door walk in.
The shop keeps their tour and you keep yours. Nothing is copied and nothing is shared. Your tour simply knows there is a door here and where it goes.
Propose a linked tour starts a proposal. Name the place, then Choose on the map and pick the point on your tour that faces their door.
Then type the email of whoever owns their tour. Nothing has been sent to anybody yet.
Write the email to them opens your own email program with the message already written, explaining what you are asking for and what it does.
Nothing is sent until you send it. Read it, change it into your own words if you like, and send it yourself. It arrives from you, not from a system, which is why people answer it.
When they say yes, ask them for the link to their tour and paste it in.
It opens in a new tab, so a visitor who steps inside has your tour still sitting open behind them and gets back with one press.
This is the switch that puts the door on your tour. It needs two things first: their link and your door point. Without either there is nothing to open or nowhere to open it from.
They said yes marks the proposal agreed. That is your own record for chasing the ones who have not answered; the link is what a visitor actually sees.
Opens that proposal, at whatever stage it has reached: written, sent, agreed, or live on the tour.