ZBrushCentral

ow do you insert a hole through a mesh that is already hollowed?

I have a mesh that is already hollowed into a shell in preparation for 3D printing. How do I insert another hole through the shell?

http://docs.pixologic.com/user-guide/3d-modeling/modeling-basics/creating-meshes/dynamesh/methods/

Thanks for the documentation . . . I appreciate your assistance!