Actually, I'm wondering if I understood your question correctly.
You throw a stone into still water and the ripples spread outwards. The stone hitting the water is the initial cause -- relative to our perspective, the origin of our universe --, and the ripples are effects of that cause radiating out in a causal wave.
Are we just part of that bigger causal rippling, or are we capable of being smaller stones that create our own ripples in the already existing pattern? That is how I understood the question, but I'm not entirely certain that I'm on the same wavelength as you.
If all of your choices are based on a cause that originates outside of yourself then what free will to you really have. You may have the free will to choose the direction but does the cause limit you in anyway to that direction and are you able to create a direction without a cause?
I don't believe in the term perceptual free will. I wouldn't even call that a real term. You are getting into more of a discussion about reality and perception. That is a topic that none will fully agree on as reality is what you make it, your perceptual view of the world can only be defined by yourself. This topic is best left for another discussion as my view on the world is much different than others.