[Joseph M. Morgan] “However, let me ask… is there a way to do what I do in After Effects (I think I’ve seen your name there)? That is, in AE, I can put arbitrary controls (sliders, etc) on something and then connect properties (or property expressions) to it. I was hoping for something more like that… that is… something more like a dimmer switch, on-off switch, etc.”
Yes, you can do that with Xpresso.