=FTP= also uses LotATC.
A piece of software to monitor all flight activities as an "Air Traffic Controller".You don't actually control all traffic but can monitor movements ; watch were the enemy aircraft, ground troops etc. are.
This could be seen at a secondary monitor to watch all traffic and movements.
LotAtc is a client + server software which is connected with DCS World Simulator and provide users to get an ATC/CGI view of the battle.
More information and downloads can be found here:
This is an example view of what you see at a second screen.