Are the Skeleton Controller Rigs by pornohile only meant for poses?

[Ceeo]

Hey Guys,

 

After downloading the custom skeleton rig here ( http://www.loverslab.com/topic/36314-3ds-max-skeleton-controller-rigs-draugr-v0132-2015-09-22/)  for single human f and m, and importing an attack animation to this this rig, the upper body plays the attack animation, but the legs don't move because the feet are planted to the ground.

 

Is this skeleton rig is only suitable for poses? 

 

Can it be used to make running, jumping and attacking animations as well? If so, how do I prevent the feet from being stuck the ground?

 

Thanks