I've been using Spine for a while now, the graph editor was a welcome arrival for me, couple things though, in Maya, you can drag a box around some animation curves and adjust all within it, like deforming an image in photoshop, and another feature is being able to select a bunch of keys and apply an adjustment by typing an operator and value in the value box, in maya you can select all the x translation keys for example and type in the value box "*=2" and all the values will be muliplied by 2 ... using this can make mass curve adjustments very simple, it also works on the keyframe, to stretch or shrink an animation curves time .. I hope I am making sense? is there or are there plans for something similar in Spine?, I know I would use these a lot.
Also ... (should probably be in another thread) can anyone point me at a tutorial where I can create two anims, and create a third that blends between the first two as an actual animation that can be edited further independantly of the two source clips.. maybe too ambitious?