Double-clicking the layer will let you change it's name.Under the new set button there's a button to clear the layer you have selected and next to that you can press the trash can to delete the layer entirely.Underneath the new layers there are two ways to merge a layer into the one beneath it.

Next to that is the 'New Layer Set' button, pressing it gives you folders you can put groups of layers in and control them as if they're one.This gives you a special kind of layer that has a different set of tools. Next to the new layer button is the 'New Linework Layer' button.Then click Yes to confirm the Paint Tool SAI uninstallation process. Select the Paint Tool SAI and then click Remove/Uninstall. Above the list of layers there is an icon of a blank page with a folded corner, clicking that will give you a new layer. Locate and select the Control Panel menu, then select Add or Remove Programs icon.On each layer there is an image of an eye, clicking the icon will toggle the visibility of the layer.The custom tool tray contains user customized brush like tools. They allow you to change parts of an artwork without touching the rest and change how things overlap in your artwork. You can change tool shortcut key by double clicking these icon. On the side of your window, there should be a large grey box with a small purple box inside it that says 'Layer 1.' Layers are like painting on sheets of glass and placing the sheets on top of each other to make a picture.

Paint tool sai icon