Feature request: mute scenes in a super-scene

[lordGoldemort]

You can currently mute entire channels in a SuperScene. But I'd like to be able to select the bar for an individual scene in the timeline (or multi-select by drag / shift / ctrl) and mute those. This would be very useful for debugging if nothing else as sometimes it's hard to know if a particular scene is causing problems.

A muted scene should be grayed out. And obviously the mute state can be toggled off again.