Personal videos can be uploaded in the "Videos" section. Choose "My Videos," then click the "Upload Video" button. Once uploaded, you can either add the video to a playlist by choosing the three dots and selecting "Add to Playlist," or you can tag the video in the Tagging Platform. Choose "Video Tagging," go to "Games," and switch to the "My Videos" tab to see your uploaded videos. Click on the video and choose your preferred catalog to start with tagging.