Hope I can state this question clearly. I'm trying to figure out how to assure that the adjustment handles on a particular anchor point exactly form a straight line with each other, rather than having one handle going off at an angle vs. the other handle.
In the illustration below, in the first path I simply grabbed the anchor point and dragged to the right. The two adjustment handles are automatically of identical length and are perfectly in line with each other (which creates a perfectly smooth curve).
However, in the second path, suppose I want to drag the right adjustment handle further to the right. I can do this manually, but then the adjustment handle is free to pivot up or down and I can only hope that I have kept the two handles exactly in line with each other. If they are not precisely in line, you get somewhat of a cusp rather than a smooth curve.
Is there any way to manually drag just one of the adjustment handles, yet still force both of them to be exactly in line?

In the illustration below, in the first path I simply grabbed the anchor point and dragged to the right. The two adjustment handles are automatically of identical length and are perfectly in line with each other (which creates a perfectly smooth curve).
However, in the second path, suppose I want to drag the right adjustment handle further to the right. I can do this manually, but then the adjustment handle is free to pivot up or down and I can only hope that I have kept the two handles exactly in line with each other. If they are not precisely in line, you get somewhat of a cusp rather than a smooth curve.
Is there any way to manually drag just one of the adjustment handles, yet still force both of them to be exactly in line?
