1；’When using the marker, rotate the canvas with your left hand, and the direction of rotation of the brush does not follow the pen in your hand, but the canvas
2；The brush is too fast, the tail does not control the flow very well, and there is even a delay in the "flow"
3；My brushes can't be arranged in the order I want them to be
4；In addition, I can't easily set the brush I want by using the "dynamic" in the brush. I would like to have a full graphic tutorial or video tutorial to illustrate this