Track Height
Tracks can be viewed in the Edit window at any of eight heights: Micro, Mini, Small, Medium, Large, Jumbo, Extreme and Fit To Window. Larger track heights are particularly useful for precise editing, especially for MIDI. Smaller track heights are useful for conserving screen space in a large project.
You can adjust track heights on an individual track basis or set all tracks to the same height. Track heights can be changed during playback.