I am wondering how I go about making my controller work with other planes and heli's that I build.

Do I have to order a Seperate Transmitter for "Each Receiver"
or can I just have the Servo's and Receivers in each plane and change crystals.

What would be the best application to handle this. My controller can have up to 8 different models programmed into it. And I currently have 3 Heli's and 1/2 a plane (lol long story).

Thanks appreciate the help - I'm a newbie to the hobby! But watch me grow!