Track Realtime Changes On Light HD Component
Add this script be able to modify properties on the Unity's Light component during Playtime via Script, Animator and/or Timeline.
Enabling this feature is at very minor performance cost. So keep it disabled if you don't plan to modify the Unity's Light component during playtime.
The Track Realtime Changes On Light HD component must be attached to a Volumetric Light Beam HD. You can use this button at the bottom of the Volumetric Light Beam HD inspector.