How can I get the Keyframe Window to follow the playhead?

STEPS:
RESULT:
Keyframe window doesn't keep playhead visible. Don't see a toggle to enable this.
- Add some keyframes close to each other in disparate parts of the timeline
- Zoom in to see keyframe detail (are there shortcuts for this? can't find them in keyboard editor)
- use ] and [ to navigate keyframes
[/list]
RESULT:
Keyframe window doesn't keep playhead visible. Don't see a toggle to enable this.