The Polish slider affects the keeps the QGrid subdivision at them by clicking the small base mesh edges, providing uniform and outer surfaces of each.
First you select the desired Slice brush and then ZBrush uses that brush any time you hold the modifier keys. Upon remesh, ZBrush will create two objects with separate PolyGroups. Control Mouse Drag. Another easy way is to mask the stuff you dont want, go to the split section of the subtool palette, and split masked. For more information about them, please read the corresponding chapter in this document.
