Thanks for repond. Yes, i see icons, it puts out “E” signal by default when i use button-2 after restarting computer, and open krita again. The thing is that i dont have much button at drawing tablet and i used to “E” for eraser directly. For now, i just sent mail to XP-Pen with all detail and asked for updating software if possible. I will wait some, at least for respond, if there is not a change for updated version of Tablet Configuration Panel… then i can consider changing shortcut buttons. 