Have a "trace route back to starting point" feature
Some people run from point A to point B and then back again, along the same path.
For these situations, it is extremely hard, if not impossible, to adequately map out the route in the current creator tool. The first set of points, from A to B, interfere with the creation of the route back from B to A.
Propose a feature that would trace the route back to the starting point. Clicking this would automatically insert route points back from B to A, saving the user the trouble.