Putting a hole in static mesh

hi , just wondering if there is a way to cut a square or hole in say , a wall or floor or ceiling? for example if I had a large building going and wanted to copy and raise the floor up to become the ceiling(or second floor), and be able to cut a square out of it to allow for a staircase to come up. thanks

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If you’re talking about doing it during gameplay (like The Sims) then that’s a whole complex issue. But if you’re simply trying to make a level then you should make a new mesh that is modeled the way you want rather than trying to cut a hole in a mesh in UE4.

ok , I will do it that way, I just figured it would be easier to copy and paste the floor , and raise it up and remove a small square out of it. since there will be only one exit out of the room going up.

You could use a box brush and just put a subtractive brush where you want the stair case. Then you could convert the brushes to static meshes.

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If you go to the place actors tab and go to geometry you can select the subtract option and create a cube which will subtract whatever it touches

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