[DRG]

If you are referring to a generated game you can not..... if you are referring to a scenario you can use waypoints. There is an overview on their use in the GG and a detailed analysis on three increasingly complex ways to handle them at the end of the GG write up.....for most people the first way described is all they need but if math formulas aren't something that makes your head explode there are VERY detailed ways of controlling how the AI moves in a scenario.

In the game guide on the left side 1/3 of the way down in the link to the waypoints section. Start small first

Don