Tracks: lock, hide, mute, solo

Each track header has buttons:

• Eye (video): hide the track from the picture.
• M (audio): mute the track. S: solo — when any track is soloed, only soloed tracks are heard.
• Lock: protect the track from edits.
• × (on hover, empty tracks only): delete the track.

Right-click a track header to add video or audio tracks or delete an empty one.

Shortcuts show the Mac keys: on Windows and Linux use Ctrl for ⌘ and Alt for ⌥.