"edit aircraft.cfg files"......ummm how?

Hi
New to all this chaps so please be patient!
Just downloaded new panels for the 777 but have to in order to operate the radio.
How on earth do you do that??
Any help would be much appreciated!
Thanks
New to all this chaps so please be patient!
Just downloaded new panels for the 777 but have to in order to operate the radio.
How on earth do you do that??
Any help would be much appreciated!
Thanks
