Hello,
Starting with 1.6.6 and certainly with the new version 1.7.0 you can do Stream Aliasing for HLS. The commands are slightly different (addGroupNameAlias instead of addStreamAlias) but the concept is exactly the same. The alias will automatically track with the user/player across the various HTTP sessions maintaining a logical "streaming session"
You can even log those streaming sessions to get a consolidated view of active streamers using HLS (and other HTTP streaming protocols like DASH).
Bryan