Although there are hotkeys, they don't work well for me. For example, if I want the eraser tool while I am holding the pencil/brush tool, then I press E to change my tools but when I release that E button, the tools should change back to Pencil/Brush just like in Krita when you press E while using the brush, it only switches to eraser until you press the key, after that, the tool reverts to Brush.