Hello dear Papatonk,
Why there is F in
The F is the method Macro F advisor by J-M-L, I do not know if it is me who mis-noted the instructions of J-M-L but it did not work.
You are too strong, that beautiful idea,
I will follow your instructions by installing the library "Menu management" Shield DFRobot and thus record the operation of the keys, I will try to work on this first main problem, Thank you again for your help, cordially.