I'm trying to figure out how to program my radio for 2-tone. I'm new at this so bare with me. I have 127 channels programmed. Channel 1 is our dispatch channel however i would like to add a channel named "greenhorn fire page" that would normally stay silent until our tones were toned out for a call specific to our district. I have a list that says Tone 1= 422.1 and Tone 2= 445.7 What do I need to do exactly to make this work? There are so many options to click on that I'm not really sure which ones to select (i.e. optional signaling [?], transpond [?], busy channel lockout [?]) all of which I'm clueless about their use. Any help would be very much appreciated, thank you.