Feature Request "Editor Only" Timeline Tracks

Hi,

Is there a way to have timeline tracks or track groups that persist in the editor only and don't get pushed out in the final build, similar to the EditorOnly tag on GameObjects?

Often during timeline development I'll have tracks in there that are useful during timeline development, but I don't want them in the final build (like sound effects, music, etc that are normally handled by the game's logic). It'd be great if there were a better alternative than just muting them (as I assume they still end up in the build if I just mute them).

Thanks.