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Level Design Subtracting movable objects?

What I mean is: is it possible to create a cube like you can in modeling programs such as 3ds max, where you make it and you can scale, rotate, move and even edit its vertices. In unrealed it seems that when I add a cube into the world, its permanent (unless i press undo).Is there no way to resize an added or even a subtracted cube?

You can do Vertex Editing with BSP. 4-spiked box with an arrow to the left of the Camera icon.

The controls are very basic.. you can just drag verticies around.
Rebuild after you alter the BSP.

Be very careful.. if you want to do something fancy, you should do it in a 3d program (maya, max, xsi, blender.. whatever), because BSP is really easy to hose up (and if you hose up BSP, you can hose up your map)

When you add a subtracted cube, what you want to do is create a new builder brush how you want it, then subtract from your orginal BSP.


I recommend you read up on it:
http://udn.epicgames.com/Two/BspBrushesTutorial.html

and experiment alot to get the feel if you want to really mess with BSP (and realize you will break things while learning the limitations.. so build alot of tester levels or something). Know that you WILL hose up BSP and create BSP Holes and stuff like that.. they are fixable, but it takes alot fo time to learn how to fix them (mostly just learning how BSP Cuts work and such)
 
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