Cant seem to find out...

Hi... I working on a map. The map is getting ok, but i cant seem to find out how to make a player be computer controlled!
Scenario, player options.
Now i want player 1 red, and player 2 blue to be computer controlled.
Contoller: Computer.
Now i think it should work, but it doesnt! Why not? Do i have to do something more? emote_confused Please help me!

You have to check fixed player settings or you will be able to choose in game.