Hi Paul. Because of size, the all programm was not shown.
More details now:
int Value;//value of parameter
int Value_change;//value of In- or Decrement
int setPin=0;//buttons connected to A0 pin of Arduino
int i;//to calculate how long the "select" button is pressed
int j;//to calculate how long no actions took place
int setPinValue;//value of analog input
boolean Program_Mode;
boolean Value_Mode;
//further code
void loop()
{
setPinValue = analogRead(setPin);
if ((setPinValue>=240)&&(setPinValue<420))//"Down" button pressed
{
lcd.clear();delay(20); j=0;
if ((Program_Mode==HIGH)&&(Value_Mode==HIGH))
{Value-=Value_change;}//decrement value of the paramerer chosen
else {parameter--;}//decrement parameter's number
}
//further code
}//end of void loop()