Small Model Edit

[MoCo]

Hey there,

I need a small model edit for a recent project (http://www.hiveworkshop.com/forums/map-development-202/rise-vampires-261148/#post2635420).

I got a wall model for which I need a variant with a passage carved out as shown in the attached screenshot so that I can use it as a doorway for example (Texture path is Textures\Wall2.blp).

Any help would be very appreciated!