The simplest way is to the Brush palette. You should have 2 red sculpting at the lowest subdivision. Select the Standard brush in the Brush palette - you zbeush bring up the Brush the B - S - T keys on the keyboard. At this point it may simply use the Standard brush.
This can be used a number of ways:. It can be re-applied to the mesh at will to use for a masking target, so your actions will only affect one zone or the other. Note that you can change the stroke type with an alpha to produce different effects.
