Trigger Action "Set ATC silent mode" Unit (=airfields) in alphabetical order

[S3ntry]

Currently, the Unit selection (which is the airfield selection) is in some unknown order. It would be much easier to select one if this could be in alphabetical order. Furthermore, there is the selection of dozens of "H" helipads which is pretty useless, since there is no indication which "H" is which.

The picture is an example of the Syria map.