That feature is currently available.
Each body part is on a layer that determines the order (front to back) of which body part is "on top of" another.
The order of body parts can be set initially in Composer mode on the Scene Manager's "Layer" tab on the lower right of the screen.
The body part layer order can also be changed during an animation on the Stage using the Scene Manager's "Layer" tab on the lower right of the screen.
Get my Plugin Manager and TaskNotes plugins for iClone.
Check out EZColors and Other products for CTA/CA. EZColors: the easy way to change Render Styled (RS) colors!
See my CTA Tutorials on the YouTube channel CTAStepByStep