WRS is pro only, but bind and level should work with your edition, too.
level Quote:
LEVEL"levelname";
All entities from this map file are automatically included into the published game folder or the resource. Use this to make sure that sub-entities of levels or map entities are included.
Example:
LEVEL "level2.wmp"; // include all entities from level 2
LEVEL "level3.wmp"; // include all entities from level 3
See Also:
include, BIND
After publishing you can create folders and put the files manually in the folders. Best way: sort the files in the window explorer by type.