Make sure you have the sufficient RC rights first off. Second, open the
'Folder Configuration' on your RC. Now if your adding a 'levels' folder, input this line.
levels levels/yournewfoldernamehere/.nw
After you adding the correct lines in your folder configuration, open your rights, then add "rw levels/yournewfoldernamehere/
Im sure it's something like that (Havent been on RC in quite sometime, and cant do so now), but give it a shot. If it's wrong, im sure others will be able to assist you.
