How do u create a hole in the figure? or cut? if u use real clay u only push with a cuting tool to create a hole that cross all the figure but how u doit at Zbrush? i dont mean push clay i mean creating empty spaces.

How do u create a hole in the figure? or cut? if u use real clay u only push with a cuting tool to create a hole that cross all the figure but how u doit at Zbrush? i dont mean push clay i mean creating empty spaces.
