You can divide tracks into lanes. This allows you to place clips on the same track on different lanes in parallel for stem mastering, for example.

You can add up to 8 lanes to a stereo track, mono track, or reference track. If a track contains only one lane, the lane behaves like a track. That is, the lane control area is not available.

Stereo tracks can only contain stereo lanes and mono tracks can only contain mono lanes.