If I had a chance to be heard I would suggest this to all animation software makers out there. This would be very helpful especially for movement cycles of any kind. A plane that acts like a treadmill below the feet of the character, that infinitely moves in a configurable direction with a configurable speed and amount of markers (like the notches on a tank chain), so you can adjust it to the speed of your cycle and know exactly when a foot has to touch/leave the ground.
I'm sure this can be done easily with a bit of fiddling, but it would be nicer as part of this marvellous tool, toggleable inside the main animation view.
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