How students submit Panopto videos:
Step 1. They would click as normal on the submission point
Step 2. From the side panel that points out they would then select [View Instructions] (the only option on the page)
Step 3. Click on the text box, to show the options bar
Step 4. From the options bar select the plus inside a circle on the far right
Step 5. Then select [Integrated tools]
Step 6. Then select [Panopto Student Submission]
Step 7. Select [Choose] or [Upload] or [Record] (from the top tabs) depending on how they are choosing to create their submission
Step 8. Then select [Insert]
Step 9. You can rename the submission file at this point
Step 10. Then [Submit]. All done.
You may want to put a version of the above steps (from step 3) in the instructions for the submission point.
You can witness this process yourself by creating a dummy submission point in your site, making it visible, going into Participant Preview and trying it out for yourself. You can delete the submission point after.