1. A computer implemented method for displaying a window containing an alternate data representation in a three-dimensional system, comprising: (a) displaying, using a three-dimensional (3D) graphics application, a first 3D view of a real world scene on a display device, wherein the first 3D view is comprised of a first set of data layers; (b) selecting, in the 3D graphics application, a set of entities that together define an alternate representation of the first 3D view, wherein: (i) the alternate representation comprises a second set of data layers that is different than the first set of data layers; and (ii) the second set of data layers is comprised of the set of selected entities; and (c) displaying, using the 3D graphics application, an overlayed window on top of the first 3D view, wherein the overlayed window displays the alternate representation of the real world scene.