The Sorting button brings up the Point list sorting dialog box. This dialog allows you to sort the objects in the following manners:
Shortest path: Starting with the first object in the list, a path is created by moving to the next closest object.

X ascending: Objects are sorted in increasing order according to their X coordinates.
X descending: Objects are sorted in decreasing according to their X coordinates.
Y ascending: Objects are sorted in increasing order according to their Y coordinates
Y descending: Objects are sorted in decreasing according to their Y coordinates
The left-hand figure shows a shortest path sorting. The figure on the right shows a y descending ordering.
