Lava Lamp Shader/Material

Oh how awesome that lava lamp effect is, so much better than what i have at this moment, but I just have a singular flat circle and not the awesome dynamic blobs you have. I have a feeling its because I don’t understand "Here, the vector parameters are set based on the world location(divided by the scale of the volumetric decal) of 10 invisible spheres that I’m applying varying forces to. " and how to set that up in the level blueprint and what objects i need in my scene.