Is it possible to add a layer to a Collector Map that is for read only, and thus not sync-enabled. My reading and testing would indicate that if you want to take a map offline, then all the layers need to be sync-enabled feature layers. This would require me to enable archiving and add GlobalIDs.
Would be ideal if I could side load a layer, the same way I can side load a basemap.
Am I missing something here?
Collector: Prepare maps for offline use
ArcGIS Online: Take Maps Offline
Server: Prepare data for offline use