Panorama image access (denied)

I would like to create a virtual walkthrough of my home designs, based on a series of “6 face” DLSR (3D) panorama room images. These images are generated by Envisioneer, but users CANNOT access the image file(s) produced and later uploaded (by Envisioneer) to the HomeViewVR cloud-port (for viewing only). As this option does not appear to exist in Envisioneer, my options are limited to: (A)  either getting a new 3D modelling s/w, specifically one that DOES include this feature or; (B) get my Envisioneer Panorama views into a new s/w that will stitch the Panorama images together to form a virtual room-to-room walkthrough (blended path, or targets like on Zillow/Redfin virtual walk).

1. I wish Envisioneer had this capability, but I do not believe it does.
   That said, combining the Panorama image option to the Envisioneer Animation function might work well.
   Idea being that the nodes of animation path become linked to a series of Panorama cameras/views.
   The cameras define the view. The animation path could also add targets (doors) that take viewer into different views (Hall, etc.)
2. Is there a way to access the “3D” DLSR image files produced by Envisioneer? If so how & where?
   These are uploaded to HomeViewVR, but I want to import them into local stitching s/w to make walkthrough.
   Note: The animation option is NOT the same, as it’s path, speed and focus are totally fixed.
3. Are there any opinions w/r/t which stitching s/w is preferable?
   Examples: My360, CloudPano, Giraffe360, EyeSpy360, Kuula, or Virtual Tour Pro.