Editing bezier curves control points on the graph will be in the next update. Currently the timeline click+drag controls support adjusting duration and delay o

Editing bezier curves control points on the graph will be in the next update. Currently the timeline click+drag controls support adjusting duration and delay of the animations. Editing the CSS should update the graphs automatically. Make sure you're looking at the correct keyframe & selector combination. If it doesn't update that's a bug send me an email, I'd like to know!