I'm really enjoying substance painter right now. However I'm confused as to how I can export Specular maps for UE4. IN SP the only shader option I have is Metal-Rough, from my UE4 understanding metalness is not what I want as I've been painting specular maps. In the export options there IS a gloss-specular option which is what I want, however doesn't export the maps I want.
What would that standard file set-up and export process be for albedo, spec, rough and NM from substance painter to UE4?