BCD436HP managing favorites list (Sentinel)

When I open up my favorites list I have many groups, I would like to sort them by alphabetical order to simplify finding the list I'd like to activate, yet I can't figure it out.



I know I can edit the groups within the "Favorites List" by clicking the star and pencil icon, however I'm taking about the (departments???) that immediately appear when you click the + next to the "Favorites List" on the main screen .



please excuse my lack of terminology associated with this radio, I just got it a week ago and I'm still figuring out the kinks (dept, system, etc.)



Thanks!