VSCO Film for ACR 9, 8 & 7: How do I blend different settings like opacity in Photoshop? Can I turn the film down?

This isn't something ACR gives us the facilities to do, and since we're staying within and ACR (not a plug-in) we can't do anything Adobe hasn't given us the ability to do already.

So, blending, mixing, turning down, all of those kind of things are not possible. We do provide multiple versions of most things to give some degree of control in this way. If you REALLY want to blend things, create and export multiple version and open them into photoshop where you can actually layer them on top of each other and blend between them.