The last update of RSG is online. Now you can see the corneal SIA by one of the custom factors or by the combination of both. In these cases you will not see one point per eye, instead you get an arrow going from the centroid pre-op to the centroid post-op for each factor. You get also the number of eyes that were used to calculate the centroids and the SIA for each factor.
I want to remember that the recommended screen resolution to use RSG is 1650x1050 or above.