I think it would be handy to have a heirarchy or dropdown feature available for the watchlist function (like how Point Heirarchy works).
As the number of watchlists that I have grows, it becomes harder and slower to find the right watchlist!

It would also be convenient if watchlists could be replicated/synced between mango instances using Persistent TCP.
Watchlists could be added to the publisher in the same way that points are currently added.