im pretty new with zbrush so this might sound sort of noobish,ive sculpted a head out of a sphere. im gonna create a tongue out of a zphere , so i press T to quit the edit mode , then i create a zphere , press T to enter the edit mode so i can further shape the zphere into a tongue , here’s the problem , i cant append the zspere into the head , is there any easy to follow tutorial for doing this ?P.S : i tried converting the zphere into adaptive skin , then i selected the head from the subtool , then clicked append and choose the zphere i shaped for tongue, however i see another head in the mouth area instead of the zphere.