In this example, the source media contains only video, so no source audio track indicators are displayed.In the example at right, the position of the source track indicators means a clip with one video
track and one audio track would be added to the Video 1 and Audio 1 tracks in the Timeline
panel when using buttons or a keyboard shortcut to add a clip to the current sequence.
In the following example, the source track indicators have been moved by dragging them to new
positions relative to the Timeline panel track headers. In this example, the clip would be added to
the Video 2 and Audio 2 tracks on the Timeline when using buttons or a keyboard shortcut to
add a clip to the current sequence.
Click a source track indicator to enable it or disable it. A blue highlight indicates a track is
enabled. You can make advanced edits by dragging the source track indicators up or down to
different Timeline tracks and selecting which source tracks you have on or off.
When performing edits in this way, enabling or disabling timeline tracks won’t affect results.
Though the source track indicator and sequence track selection controls look similar, they have