Thank you Tyrion.  ::) ::)

Don't worry about track function
now i've got new problem --*
its just happened with my last 2 flights

everything looks normal flight
but after takeoff 5-30 mins some of electronic turnoff by its self
like gps, ap, nav, radio, adf
(Can virtual landed, the engines + hyd works 100%)

i didn't know why!?! stiil looking for the answers..  :P :P