Video Skybox linked to keyboard control

Hi all, I’m new to Blueprint, having come from more of a development / WebGL background.

I’ve prototyped something in WebGL that I want to move into Blueprint, and I’m wondering if someone could help me figure out how to do it:

Have a look at this video

In my demo video, I’ve got a video skybox, and the playback is controlled with the up and down arrow keys.

How do I set up my skybox, camera, and keyboard inputs in Blueprints? I’ve gone through the basic Blueprint tutorials but don’t quite know how to do this yet.

I’m also wanting to create graphic things (cubes are fine for now but eventually trees, foliage, buildings) that move through the space as if they are moving with the video. How can I create this illusion?

Please let me know if that makes any sense. All suggestions are welcome, thanks!