Dynamesh through transform tool in ZBrush

• bring in a new primitive
• make polymesh 3D
• in the transform tool buttons
• click the gear 
• zremesh through dynamesh
• white cone
• polygon count
• red
• reproject
• blue
• smooth
• remesh by zremesher
• white
• poly count
• red
• blue
• when you're happy click the gear again and press accept
• Do not use this for booleans, just for clean up

After you dynamesh you have to zremesh