Subtract from static meshes

Hi, I just bought a lowpoly Pack, with some buildings, but there is no passable door and I wanted to create one. I tried to subtract it with a brush box, but it didnt worked, because its a static mesh. Is there a solution how to do that in Unreal Engine 4? Here is an example (I want to remove the door)

I dont think there is a way in UE4, you might have to export it and change your mesh in a 3D program like blender.

you can’t do that with static mesh but if that door has a separate material you can just apply a masked material to make the door invisible. you can still do that if the mesh has only one material but that would be a complicated material its just easier to export the mesh and modify it in blender or Maya and import it back to engine.