Request: Addon for sharing Warhorn/Ultimate status

[Solinur]

Putting this here for a guildmate:

He would request an addon to share the state of ultimates (could be achived using LGS from sirinsidiator).
This would be quite useful for coordinating raids or maybe bigger pvp groups (if they ever become a thing again).
I'm personally to busy, so I can not take this request for now, but maybe someone is interested to do this?