Does anyone know how to share a folio with somebody else so that they can see it and use it on their Folio Builder Panel?
You can use the same Adobe ID to login (no need to share).
But then, how will the other user gain access to the InDesign files?
You can share to a different Adobe ID.
But when you share a folio with someone they can add new articles to it, but can only preview the existing shared articles.