E.g. for Thunar it would be nice, if there was a keybinding for cycling between Thunar windows.
List of windows should be vertical and show title of each window at once much like when you click a grouped item on Task List on panel. But cycling would not be as fast as choosing by clicking, though, if there are many windows :(
Perhaps a button to display such a list could be added to a window's title bar? But that would be another enhancement.
Seems like this was added a while ago: http://git.xfce.org/xfce/xfwm4/commit/?id=9166f38e438cabae41f020b477091d36004495f0
Nice. Perhaps I sometimes find the right key combination.