ZBrushCentral

Polygroup selection by way of the Mask brush?

ZBrush Usage Questions
#1

Simply is it possible to select out a polygroup by selecting a part of the subtool with a mask and then have that selection become a new polygroup?

#2

tool > visibility > hide_PT
tool > polygroups > group visible

#3

Or…

Tool > Polygroups > From Masking.