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Build on someone else's published map

Any published Map can be forked: you get a full copy of it as a new private Map that you own and can edit. The original is untouched, and its owner is not involved.

Most map creators never need this. It is here for the case where a venue’s Map exists, is nearly right for what you are doing, and you want your own version of it.

What a fork gives you

  • A complete copy — the image, the Anchor Points, the Areas of Interest, the floors.
  • Owned by you, private, and fully editable like any Map you made yourself.
  • No link to the original. It is not a Map Version of it and it does not track it. If the original publishes a correction, your fork does not get it.

What it does not carry

  • Collaborators. A forked Map starts with none, even if the original had some.
  • Installers. Nobody who had the original has yours.
  • Publication. Your fork is Private and has to be submitted for review on its own merits if you want it in the catalog — submit for review.

⚠️ Before you publish a fork, think about the image

A fork copies the original’s picture. Publishing your fork means publishing that picture, and you confirm you have the rights to it when you submit — a confirmation a reviewer reads.

Somebody else having published it does not transfer that right to you. So a fork you intend to publish usually wants its own image; a fork you keep private for your own Group does not raise the question.

When something else is the right tool

What you wantDo this instead
To fix a mistake in your own published MapCreate a new Map Version
To help somebody improve their MapAsk them to add you — let a colleague edit your map
To use their Map as it isJust install it — find and install a map
To keep an old version of a Map that is being updatedNothing. An older Map Version keeps working indefinitely

Forking to make one small correction is usually a mistake: you take on the whole Map, permanently, including keeping it current, and the venue now has two Maps in circulation.

The case it is genuinely for

A Map that is unowned. When somebody deletes their FriendTrack account, their published Maps stay in the catalog with the ownership removed — and an unowned Map can never be edited or versioned by anyone. Forking is the only way to continue one. See delete your account.