GPS Track Editor Basics: Restructuring GPS Track
A well-formed track is easier to navigate and to work with. It can also
look better since long edges with no GPS fixes become breaks between
segments that are not drawn.
You can rearrange track folders and segments by clicking Track | Restructure...
The algorithm runs along the track and starts new segment or folder
if a time interval between track points exceeds a chosen threshold.
This structure often corresponds to the logical subdivision of a track.
Note
A GPS track that is not in GPX format is plain. That means
it represents just a sequence of points and does not have any structure.
All such tracks are automatically restructured when opened.