Ugh, n00bish question...

[supersonic45]

How do you have more than one map in a level pack?

 

[Princess Plushima]

Use XWE's file->merge files to, well, merge the files.

 

[Shuffle]

That's just stupid, why would you want the levels in separate wads? :|

 

[Princess Plushima]

That's because there were 20 people working on all the different WADs.