I'd like to see the ability to assign a path constraint when creating multiple footsteps.

How Used:

In the "Create Multiple Footsteps" dialogue box, create an option to pick a spline to act as a path constraint. Then, the user could not only choose a path for them, but also define the total length by the spline and adjust the path on the fly by modifying the spline.

Feature Affinity:

Biped Animation