I’ve coded and used this since RoS encounter in TBC, since we kinda need it for Vezax, here it is: eKick 0.8b
There is some options in blizz config menu – don’t everyone put announce on to avoid spam in party chat (called emote in options, in fact spams to party)
When someone uses interrupt spell – bars will appear. Green = ready. Blue = landed, interrupted. Yellow = missed. Red = pool energy, cd ready soon (3 sec)
Alt-Click will let you move it around your screen. Alt-Right click hides it (until next interrupt).
Bars disappear after 30 secs of inactivity(but Earth shock can be annoying for Shamans).
No way to disable it atm since I don’t mind it usually. You can disable it from addon options – uncheck enabled.