Getting the required extra large in-game images proved to be difficult, so I just stretched them and cropped them as appropriate. I made sure to change the name as required with "Launch Pad: " added to project name before submitting.
Occasionally the submitted PHOBOS build has a scene selector scene that is irresponsive (for unknown reasons); the solution is to just take off the Gear VR HMD and then put it back on (and it will work as it should without any problems).
Finally, I submitted the required form using prepared info with the last document being the < 10 MB video file of one scene in PHOBOS.