What is the feature you would like requested?

Add a reset button (for raid leader / assist permissions) that resets the meter to 0 for multi-phase fights like Ony.

I'm not really interested in adding this and rather handle the threat correctly. I.e. this version resets threat on the primary target of the Fireball and also 25% threat reduction on a knockback. This looked pretty accurate on our Onyxia yesterday with about 50% players running the new version.

If threat is handled correctly, there is no need for an incorrect aggro reset. There is no raid-wide aggro reset on Onyxia.

no longer relevant once the threat api hits.