What addon is this? TBC

There is an arena addon that allows the player to see his teammate's CC abilities. For instance, if I'm priest PoV, what can I use to see my rogue partner's CC abilities?

Here is a video of the addon I'm talking about:
https://youtu.be/oEHfauXb0_8?t=20m45s

Thanks fam.

I guess it is just lose control on focus. He setted to show the CCs done to Focus Target at center of screen

Ah, okay makes sense! Thank you.