Saved me some nerves. I animate top-down 8 directional walk limb by limb, its crucial for me to check not only how each frame in one direction translates to next\previous one, but also being able to "rotate" every frame. As for changing which frame i "rotate" - dragging keyframes with RMB helps a lot. Being able to play keyframe animation loop\add multiple keyframe layers is possible improvement here, thought im already pretty much blessed to have this extension as is. Many thanks!