Thanks you all for your answers.
So it is a mix of all you three!
@jmarkows Yes, I forgot about the variables at the end of the great manual! so now I could set up my bravo as I wish!
@Black-Square Yes, the process is similar to the Starship but the name of the variable in the starship contains the system number which make It easier even without the manual to find. Great airplane, great work !
@MiRexer Thanks for the clarification. with the variables in the manual I could solve it.