Lightroom mobile: Syncing and organizing in collection sets

When syncing collections from LR to LR mobile, these collections end up in one single container (a single "folder") in LR mobile. This happens even when the original collections in LR lives in collection sets. Obviously, this doesn ́t scale well. In time, we will end up with a long list of collections, and we need to do a lot of scrolling to find the collection we want.

The solution to this is to include this hierarchical level in LR mobile, and have LR sync the collection set along with the collection. (I ́m not suggesting that we should be able to sync entire sets, just that this information is synced along when syncing a given collection.)