Beziers in Graph Editor

[John Karner]

Why can't offset turbulance in the noise effect have a bezier curve?  Why???  for that matter, why doesn't EVERY keyframe have the ability to have bezier curves?  It's maddening.  

[Rick Gerard]

The curve option in the graph editor changes depending on the properties and whether you are editing the Speed Graph or the Value Graph. If you are editing a property with an array like Position or Effect/Turbulent Displace/Transform/Offset Turbulence, you have to switch to the Speed Graph to get bezier control handles on the speed of the change. The Bezier handles you get for a property with an array are more accurately described as acceleration handles. Drag them left or right to change the acceleration curve. 

If you want to create a curve in a Path that has two or more properties you have to use the Layer Panel to adjust that motion curve. Only Layer/Transform/Position has a curve you can edit in the Composition Panel.

This is what that looks like:

Maybe this tutorial I produced will help you figure out the Graph Editor.