Possibility to manipulate level sequence and cameras from Blueprint?

I’m trying to interactively create a level sequence so that in-game I can create a standard CineCameraActor, position it and attach it to a level sequencer.

I’ve tried creating a new BP, but even though I can create a level sequence variable, I need to specify a pre-made level sequence, which kind of defeats the purpose in my case. It gets worse, I can apparently only modify the camera settings when I edit the level sequence.

If this is not possible using standard blueprints, would it be possible using C++ (and any ideas how)?

Thanks so much