Only show area currently covered by FOV

In the CoveredSurfaceExample tutorial, the polygons that show the satellite field of view over time on the ground are all present for the entirety of the simulation run period. Would prefer instead that the coverage polygon move over time so that only the part of the ground currently being covered by the satellite FOV is shown. Please consider this issue assigned to me (would do it myself but don't see any buttons to check for that).