When clicking on a missing path in favourites ask for new location

[stephen147]

If I click in a favourites location that doesn't exist, a new pick folder dialog would be nice instead of an OK messagebox.

[Forez]

I think a better solution would no append the current pop-up message with a new button named >>CHANGE PATH<< or >>REDEFINE PATH<<, which when clicked would

And this has already been requested: viewtopic.php?t=13505