Once opening the dialog box of the Export to 3D Model File, its size is large, enough that the export button is off the screen. That is not a problem until I try to move the dialog box up to bring the export button into frame or minimize the size in order to better manipulate it, and once doing so, it disappears. It seems I can only click on anything Infraworks again after I hit the ESC key. This might be blown out of proportion but if anyone has any advice or direction, that would be much appreciated.
