You can retrieve the coordinates of the Aerial view camera in the Home.xml file of a SH3D file. As a SH3D file is actually a ZIP file, open it with any zip tool, the view the Home.xml file it contains and look for the line starting by <camera attribute='topCamera' where you'll get the values of x, y, z (=elevation), yaw (=body angle), pitch (=head angle) and fieldOfView attributes. Then, copy these values in the Virtual visit modification box (angles should be converted from radians to degrees).
[Edit: it looks like you found the solution by yourself
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Emmanuel Puybaret, Sweet Home 3D creator
