Header Editor Right-Click to Modify Selected Track Not Working For Track Itself. Only Elements.
When using the Header Editor and right-clicking on the actual track, none of the toggles or language setting work. You need to right click on the actual element for it to work.
For example, this doesn't work:
But this works:
Same thing for the toggles, they do not work on the collapsed tracks. Only the elements themselves such as the forced flag or default flag.