In the graphics display the left and right arrow buttons provide for change of the viewing angle. However, there seems to be no way to tell what the actual angle is. I haave found this to be a problem when trying to debug a simulation in URSim.
It would be very helpful to be have a display of the viewing angle about the z-axis with respect to the base x-axis. Also helpful would be a display of the directions of the x and y axes themselves. The latter might be displayed along with the surface on which the robot is mounted.