We released the custom video update where you can now embed up to 4 custom videos (or a matterport tour or anything else really although we have really only tested with YouTube, Vimeo and Matterport) with embed code. We also renamed the standard video to Slideshow Video.
In the Order Details screen, just paste the main video embed code in the larger box, and other videos' embed code in the other areas. It will show in this order on the Custom Video view.
Note, you can also show the custom video by default (and it also shows on the Dashboard view) when the tour loads. If you select Dashboard view, the main custom video will show if you disable the Slideshow Video.
