Hi Joby and welcome to the forums. I believe this is standard
behaviour for any application and is not limited to RH. If you
minimise any window, the focus is no longer on IT but on the window
behind. Therefore if the F1 key is pressed, the action relates to
THAT window rather than the minimised one. This also applies if it
is only the PC desktop behind. I don't know if there is a solution
to this to be honest.