@Satsuma I just tried this and could get no visible feedback on option selection from the keyboard but could click the vote button. Could just be me not knowing what I'm doing, though. In my case there's also xdotool from the command line, but it's hard to estimate the screen coordinates of the things you want to click on, though I suppose you could make rulers to tape to the sides of the screen and tie a washer to a bit of string to measure that to get your command line arguments.