Hey Phil - thanks for this as very useful overview! Have used cockpit for a while and also find it very impressive but had no idea BR had already included a video stream record joystick button option!
I use iframes to create seperate views for the Omniscan 450FS and Ping1d sonar which I cannot tell you how awesome that is but see this tip from @tony-white.
I also include the Blueos mainpage as a seperate ‘view’. Highly recommended when using the standalone version (Windows) as keeps everything you need only a button press away.
There is also a generic mini-widgit option which counts the number and direction of tehter turns which I’ve found important for tether managment.
Also noticed that your video was a little blurry underwater but not out of the water. Definitely check out this suggestion from @Marco which is a great solution for this issue.