It is easy to do and also to understand.
If you follow step by step everything that you said the guide, you will do that work
-For this to work you need:
- Do everything it tells you the guidance and prove that it worked.
- After the button is to add each level for your client, making the appropriate patch as you may know.

In the same thread you have the (create mode button) by [Dev]Hoax
Cordially George St-Pierre