When a point cloud with associated panoramic images is inserted into Autodesk Revit, the individual panorama positions are displayed as spheres in the 3D view. This allows the modeler to quickly identify the correct images based on their physical locations.
Panoramic photos help the modeler recognize and verify details that may not be sufficiently visible in the point cloud itself, such as signage, labels, or other small textual elements.
To open a panoramic view, first click View Pano, and then select the corresponding panorama sphere. The panoramic image will open in a new Revit view.

This new view can be undocked or configured as a side-by-side split view, among other layout options. To navigate within the panorama, use the right mouse button to rotate the view and the mouse wheel to zoom in or out.
When the panorama view is no longer needed, the window can simply be closed. Alternatively, you can switch to another panorama using the View Pano button again. In that case, the existing panorama window will be reused to display the newly selected view.