AUTO mode yaw and gps course

Hello,
i want my copter’s gps course to be its yaw target in auto mission. kind of like a plane.
Is changing WP_YAW_BEHAVIOR param to 3 supposed to achieve that?
If not, what can?
thank you

Use Mission Planners simulator and find out.

I tried but i cant really tell for certain.
Are there any parameters to make the autopilot in the simulator drift?