@Don-Stauffer
My understanding so far:
-
POI collections in <Search> are available for all users in all new (and existing) routes.
-
POIs in <Library> are also available in all routes, but only for the user who added the collection with upload.
-
POIs in <Manage>, on the other hand, are bound to exactly this route.
So when you create a new route, you can access the POIs in 1. and 2. but not in 3. (from other routes)
Therefore my idea: I create a route as a template for a trip and add all POIs there that I want to visit and that are not included in 1. or 2. When I then plan individual routes, I do not create new routes but always copy the template.
The way you described should work and the POIs in <Library> should be visible. Maybe you have to zoom in a bit more.