why can't I change the brightness or keep the light on longer? this would be better if I could just plug it in to usbc and it keep the light on indefinitely... It keeps turning off mid thought when i'm trying to write and it's irritating the **** out of me and totally distracting me from what I'm trying to work on. I have a plug right here, I can keep it plugged in or charge it every night. PLEASE GIVE ME THE OPTION!!!