Mirror material?

how to make mirror material in UE4? is it even possible?

AND PLEASE, DO NOT SUGGEST THIS: http://ft.trillian.im/efa6257197fce847ff12c38f511516cb45fa16b0/6sxaavh9WAJUi4WzCpWAdAv2PXt5K.jpg that is not a mirror.

this is how it worked in UE3:


and this is the result:

UE4 does not have the SceneCaptureReflectActor so as far as i know, it is impossible to do.
but WHY is this actor missing? its an essential feature, it worked in UE3, why?

any explanations?