A full guide to MusicBee would be a huge undertaking. The wiki is a start, but certainly hasn't covered everything yet.
For your question, you can use Custom Views to accomplish this. It's under the Customize Layout menu by the searchbox/tabs. You can set a view how you like, then save it. When you look at the Video node, set it to that custom view and it should remain that way. The Custom View will automatically remember changes you make once it's set.