Apply Different Eases To Sections Of A Tween?

Flash CS4 has a feature where a tween can have more than two keyframes. If a tween has three keyframes, then changing keyframe 2 will affect the motion from keyframes 1 to 2 as well as the motion from keyframes 2 to 3. This is a very cool feature.
 
But there's one problem: I can only figure out how to apply an ease to the entire tween, not to the motion between two keyframes. Do you know how I can apply one ease to the motion between keyframes 1 and 2, and a different ease (or the same one a second time) to the motion between keyframes 2 and 3?
 
I've had two ideas so far for getting the same result:

1) Make a custom ease that includes all the eases I want. I find this too cumbersome and imprecise, unless there's a way to copy an existing curve into the space between two keyframes of a second curve (without replacing the whole second curve).

2) Split the tween at each keyframe. But then every time I want to adjust keyframe 2 I have to do it twice, and sometimes the break ends up jerking slightly. I'd really rather keep keyframe 2 a shared keyframe.