Hi there
i guess you want to use parallax section but instead of the image you want to use video?
I’m so sorry to say but it appears that this is not possible right now, but its good idea to post such question in the features request thread:
https://colorlibsupport.com/t/shapely-feature-requests/
regarding suggestion i really can’t do anything right now, just try to search in the net i believe there is a lot of plugins that can do things like you want
Let me know if i answered on your question or if you have another question