A dumb question about team making

[OpT1mUs]

How can I make a new team in singleplayer? When I go to Customize, Team Editor option is grayed out?
I don't really plan on playing SP but it's really be bugging me...

Thanks.

[NathanH]

Start a Campaign or Championship, make a team, click Quit and then Export Team. It'll then be available in the Team Editor.