How to make a hole in a wall

I am wondering how I can do something like make a hole in a cube like you used to be able to using the subtract feature in the older unreal engines that I used, Is there still a subtract feature somewhere? I do not see it in the current UI setup.

You talking about BSP, yes it is still in UE4, but ofcorse substraction will work only with BSP modeling. Can’t find direct docs so here tutorial i found: