Question about Riversoft Art's Assembly Line Pose Automation Kit

Those Things

It seems the "Create Bottom Half Poses" script doesn't consider the figure's Y translation. I can understand why you wouldn't want to have a top half pose affect the Y translation, but I'd really like to keep my figure on the ground when I apply different bottom half poses to it. Is there a way to modify the script, so that it copies the Hip's Y translation of the original pose?