If I may add, its worth cloning the brush before you modify it. It makes sure you don't destroy the brush.Once your done customizing brushes, just go to Brush>Save As. Save your brush in the aforementioned zStartup folder. Also, saving config doesn't save brushes. It only saves your custom UI configuration. Hope it works…
Hello! I got a problem where I've set up custom brushes in my zbrush interface, but when I close out of the program, and come back, the brushes have disappeared from their dock. I have to reload them again and put them back. I've saved config and ui. And downloaded a plugin from pixologic that was suppose to fix that…