UV Commands
This command basically does the opposite of what the UV Terrace command does. Executing this command will result in the following, depending on the mode selected:
The Unstitch UV command lets you separate parts of the UV mesh in order to edit them separately.
Select rows of points whose individual points should be lined up in a row based on defined start and end points. The rows of points must be well-defined so the algorithm can identify them as rows. This command will not work on several rows of points lying on top of each other!
These commands can be used to convert the boundaries of selected points or polygon regions to a quad or circle (or to an ellipse, depending on the texture dimensions), respectively.
For point selections, only selected UV Island boundary points will be moved.