Setting screen percentage in post process

I’ve tried many ways to set screen percentage via blueprints and nothing seems to work. This is excluding the Execute console command and typing r.screenpercentage x in. Setting it via console seems to be the only way to actually set it. I’ve also checked the content examples with the post process volume and it seems to be broken as of 4.6.1+ (also tried in 4.7). I’ve tried setting it manually on my character’s camera, adding a post process component to the camera manager and setting it there, or changing it on a custom camera manager class.

Any help would be appreciated, or if there is any way to get the value of the current screen percentage, because every method listed above would not return the correct value, would be appreciated as well.

You can use Execute Console Command in an Event Begin Play, but it won’t take effect until the game is played