It is very convenient to edit values of keys on curves in Matinee in visual mode (using move, rotation tools in viewports).
It will be very convenient to have the same possibility in timeline.
Or at least to have possibility to copy curves from Matinee to Timeline.
I had task to create complex movement curve for object in game.
I did curve in Matinee and transfer it to Timeline by hand.
Hmm maybe there is other possibility … ?