I cant do that without doing very dodgy stuff. I was hopping my proposal for that would gain some traction. Python - User Activity Versus Inactivity Timer
I am really happy you have been enjoying it. I had planned that to make an event but I am not sure how well that would be accepted without a catchy name.
the manual is at Settings > Configure Krita > Python Plugin Manager > Click Pigmento to see the manual below it.