JoshWho, if you want users would not be able to play videos in Nesfeed just post it like a thumbnails, this is considered as a custom code modifications.
If you are not familiar with the code modification or plugin development, it would be better for you to find a developer who can help you. You can do it here:
http://www.oxwall.org/market/specialists .
Or if I misunderstood you please, rephrase your question and give more details.