Walkcycle Helper
This allows you to only animate one side of the character while the other side is automaticly mirrored, offseted and updated.
All animation-changes are piped through nodes to the other side, so your changes are interactive on both sides.
Cycle length and distance offset (in the feet) are calculated automaticly.
Whe you are done, you just let the tool copy (NOT bake!) the animation to the other side and continue working.