The following were updated:  Engine, MotionMap, PositionGraph, XAxis, YAxis.
Ticks and number labels are made for the axes of the position graph and motion map.
An instructional message is provided.  (It's not very good, but it's a start toward a responsive interface.)
The motion map is now UNDER the position graph.
The code needs REFACTORED.  There is much duplicate code between XAxis, YAxis, and MotionMap for example.