So if you are on the run and you want to add a conventional frequency to a certain favorites list then hit menu, pick manage favorites, pick the favorites list you want, review edit system, pick a system, edit Department, pick a department, edit Channel, pick new channel an input the frequency. I always have 0 as a garbage favorites list so to speak with just conventional frequencies and they are for the most part all locked out. It's like a reserve library and that is where I would add a conventional new frequency on the run. Once you have entered an alpha tag Etc you can always press E and move it to any favorites list you want.
The next time you hook up to the computer make sure you transfer the card to your profile so as to keep any changes you made on the Run. That's how you do it.