I can't make it permanent Paul, the javascript you inject into the page only works while you stay on that page, once you move away it gets removed, but it at least gives you a chance to see the artist and track of the videos that have been posted previously and play them, that's all I can do I'm afraid. : (
Every time you open the developer tools you can get back what you previously pasted in there by hitting the up arrow on your keyboard to save a bit of work, but I've done what I can with my limited javascript knowledge.
Thanks for the feedback. : )
⇩ EDIT : Cheers Paul. ⇩