I am currently away from home, so I can’t give you a screenshot. Trying to do this from memory.Software doesn't have a setting for multi-site. If I understand right I should set it to check all control channels? There is a setting to stop on first useable control channel, all controll channels or strongest one.
You can set the site as stationary, then tell it to check each control channel each time it stops on that system. Just be sure that you have the control channel frequencies for each of the individual sites entered.