How to control Approach vectors?

How to control Approach vectors?

I have a part with a cylinder coming out from the side. CMM Manager keeps trying to approach from the side where the main body interferes. How to I force it to come at it from the open end of the cylinder? Is there a "Toggle Bias direction" somewhere? I am on a PH20 and want to use head touch, not vector. This is easy to do when programming a 5-axis Mill...Why not here?