The Segment Sheet appears in Track View when an event track has the focus in the work sheet.  It is usually accompanied by the segment bar.

With the segment sheet, you can edit the events in the segment.  The segment may vary in length from a single bar to the entire song, depending on how the track has been split.

The appearance of the segment sheet varies to suit the track type, but it always shows the segment events as visual objects on the horizontal lines as configured by the track scope.

On the right hand side is a table where you can display and edit the properties of the selected event(s).

The segment sheet has many features and functions that are present for all track types and others that are specific to Melody, Rhythm, Drums and Lyrics segments.