There's already a few threads on this... Anyway, ctrl+t was taken away and there's a new awesome waypoint AI system. To use it, go to UI Apps (or whatever it's called) on the main menu bar-thing in-game, and select the app 'AI Control'. (should be the first one)
Can we make an AI sticky? Or idk if the forum software is this advanced, when if you make a thread with a specific string to look out for "ai", it will direct you to a dialog box or page that suggests the AI tutorial page. It's really getting flooded here with these ai threads. Devs and users are so nice that they aren't bashing everyone.