How Do I Change The Size Of The Default Level?

So I was wondering, I created a new default level and I wanted to resize it so I can make a bigger map. I don’t know to do it if there is a way please let me know. Thanks

what default level? what are you trying to make larger? you need to provide some details so we have something to work from.

if your talking about clicking file new level then selecting default, then you could be talking about the floor bsp or maybe even the skysphere. the floor you can just scale to make larger. the skysphere well if that needs expanding you may want to look into using level streaming or world composition.