PP blendeable location: SSR?? O_o

How is this blendeable intended to be used? I found nothing on the documentation. : /

269934-captura.png

BUMP !!!

BUMP!!!

Nobody?, please epic, no doc or update notes about it.

I have no clue, but my guess is that it stands for screen space reflections and the post process will be applied either right before or right after the reflections are rendered.