Zbrush | How to use radial symmetry to mask bottom of the skirt

the next method is using radial symmetry go under transform click on activate symmetry by default only x symmetry and mirror button is on click on r to use radial symmetry click on the number on radial count and type in 16. this number will create 16 numbers of whatever you draw on the x’s you have chosen above b x y of z if you want to know which one to use just test out each of them until you see one that fits but if you want to dive deeper into understanding which plane you’re looking at and which axis you’re going to draw on the