rzelko:
I would like to be able to add stations to the array from user input. Is that possible?
You will have to limit the number of stations that can be input to the size of your array -1 (for the null). You can populate the array with default values (0) and perform a check on the station value (!= 0) before changing the channel to the station. maybe if the value is 0 it indexes and performs the check again, cycling through the unused (default 0) stations.