Begin by clicking on the "Tools" dropdown in the blue navbar and then click on "Discussions."

Click on the Discussion topic you'd like to post to.

Click on the blue "Start a New Thread" button

Scroll down to attachment area and click on "Record" then "Record Video"

Click on "New Recording" and then the blue "Add" button when finished.

Click "Add" one more time and then the blue "Post" button when ready.