ZBrushCentral

How to hidden the poly in topology?

hi,i’m ZB4 user,and I have a qustion for edit topology.

in topology mode,sometimes I want hidden some polygons to be more convenient operation.
for example, topology character’s hands,for some reasons,when I rote the character,the body always on top ,this very hard to see.

so I want know how to hidden mesh in topology mode,i try to do it in topology mode,but ZB was error…