I dont understand anything.

I didn’t understand anything. about how using addons ??
about this subject have really normal and good tutorial? I put addons on my project but. Which code i will edit or put for running showing my addon… configure or control ?

There’s an introduction to using addons here:

http://ofxaddons.com/howto

Try those instructions and see if you can get things working.

Beyond that, it would help us help you if you told us more about your situation. What platform are you developing on? Which IDE are you using? Which addons are you trying to work with? The answers to your questions depend a lot on these factors (the instructions will differ especially based on your IDE).