Well scince i am new with this i have my map im working on but the first two sides i edited i copied the whole folder for the sides. For the next two i only copied what was to be edited. Is there a way i could delete just the specified sides .lvls and re munge them with only the things that are needed to decrease the file size without doing it for everything like the world and the other two sides?

I'm not quite sure exactly what you are asking, but THIS topic might help you.

Also, if you want to delete unused .lvl files, go to your map's folder in the addon folder, and browse to the folder called _LVL_PC. Then, go through the subfolders, and delete whatever .lvl files that need to be deleted.

Muchas Gracias