Select the play you would like to add a video to and then click the large + button above the play details. Select "From Computer" to upload a file (MP4 or MOV files) from your device. Other options (depending on your account) may include via VidSwap, Synergy, or Sportscode.
Locate and select the file you'd like to add, then press Open.
Once loaded, you'll see the video attached to the play.
After navigating to the folder and selecting the video or videos, select "Open" to upload the clips.
After these have uploaded, you'll see them above the play.