Hello everybody!
It seemed to me not very comfortable original editor for precise positioning of the video. So I did my panel.
It is very easy to use.
1) Plug the XML file videospot_editor.xml
2) Rename a hotspot in the "hs_video"
Code
<krpano>
<include url="videospot_editor.xml" />
...
<layer name="video"
url.html5="videoplayer.js"
videourl="video.mp4"
/>
<hotspot name="hs_video" style="video"/>
Be sure to watch this video to see how it works https://www.youtube.com/watch?v=4TU9rjxpDoo
Here you can practice https://panosphera.ru/en/krpano/vhseditor