which futaba you have?
i have the 7cap
what I have to do to enable the idle up switch is the following
press menu
press menu again
go to thr-curve
press up 2 time to idl1=inh, change that to idl1=off(it will say on when you hit the idle switch, dont worry, as long as it is not=inh then its enable_
do same for idl2
now press down once
on top of screen you see a attow and the letter "N"(N)
hit idle switch then it will change to N(1) if it did then you have enable idle switch
now to change setting for idel1 move up and down till you have the "N" blinking and change it to "1" or "2" and change those setting
now for pitch, go back one menu and scroll to pit curve
it is the same deal here, scroll up in that menu and just change the "N" to "1" or "2" for idle 1 or idle 2
this is for the Futaba 7cap or 7chp only
hope this explains something