I confess to a brain fade today. Actually forgot for a moment which F key was the refresh key even though I use it constantly and daily.
I was surprised to see it not shown in the Command and Function Key windows of both Dir and File view.
I realize it is not the only F key functionality not shown but it is a very commonly used key, for me at least. Although, maybe it is because it is a commonly used key that it is not shown. Still, there is space in the window for it and if there is no competing candidate F key to fill the space, I suggest adding it.