Has anyone figured out Control Buses (Audio Modulation Plugin)?

I’m looking for ways to change sound cues volumes from blueprints, and since there is no node for volume multiplier, I was considering control buses, which seemed to do the job.
However, for the life of me, I can’t figure out how to use them.
I have found a bazillion nodes to create control buses, activate them, modify them, create arrays and structs of them… Every single thing you could imagine, except for one node to apply those modulators to a Sound Cue or a SubMix, nor a place to apply them to something else in the editor, and the documentation is almost non existant and mentions nothing about that.
Am I missing something here? Did anyone get this plugin working?

Check out the amazing Arthur Barthur’s BPs! Level is called Modulation, you can see there how it can work.

Amazing resource! Thanks a lot for the tip!