I think it would be fantastic to be able to use the up and down arrow keys to adjust automation values in the Envelopes Box.
It's great that we can select automation using the arrows (shift + left/right arrow keys... on mac), and that if the mouse cursor approaches the selected automation, that it turns blue, and can be manipulated with a mouse or cursor - this seems very intuitive! And it seems just as intuitive to be able to adjust the value of selected automation in a vertical way - to increase or decrease the values - by using the up/down arrow keys.
Or how about using left/right arrow keys to select automation in the Envelope Box, and then being able to press "Enter" to select that automation, and then be able to use the arrow keys to move the automation vertically or horizontally?
Thanks, Ableton Team!