Programming FMC

Hi everybody
I have a few questions regarding in how to programming the flight plan in to the fmc.
I never used before and for the last 3 days it's been he'll in how to program it :-/
Using the FMC do I have to make the flight plan in the Microsoft Flight simulator like before or I just do it in the Fmc?
And during the flight do I have to get in contact with the ATC?
I have a few questions regarding in how to programming the flight plan in to the fmc.
I never used before and for the last 3 days it's been he'll in how to program it :-/
Using the FMC do I have to make the flight plan in the Microsoft Flight simulator like before or I just do it in the Fmc?
And during the flight do I have to get in contact with the ATC?