Hey,
this is mostly to get 
Mikal attention. :)
I really love the god ray plugin. I just wish I could control the blend mode of the rays.
I'm using it on an entire layer and by default the entire layer gets added on top of the other layers.
That makes sense for most cases as we're simulating light, but I'd love to have the outcome of the god ray calculation as opaque streaks in the corresponding color that fade out in opacity.
That way they're more versatile and I could blend them in different ways with what's behind them.
Is that even possible? Just asking, as I have no idea how to make an addon ^^