I know the information is there but I don't have sufficient Haskell skills to figure it out yet. I've only been using Xmonad for about 6 months. I've seen the information in the StackSet doc, and I can also see it in prelude with this: Graphics.X11.openDisplay [] >>= Graphics.X11.Xinerama.getScreenInfo [Rectangle {rect_x = 0, rect_y = 0, rect_width = 3440, rect_height = 1440}] I have yet to successfully look inside the stackSet. I can tell that I'm not getting something that is very fundamental. I have this submap that I use mostly to move my scratchpads around. It works great but I would like to set the width and height according to the height and width of the current screen. floatKeymap = [ ("g", withFocused (keysMoveWindowTo (0,40) (0,0))) -- Top Left , ("c", withFocused (keysMoveWindowTo (halfWidth, 40) (1%2, 0))) -- Top Center , ("r", withFocused (keysMoveWindowTo (screenWidth, 40) (1,0))) -- Top Right , ("h", withFocused (keysMoveWindowTo (0, halfHeight) (0, 1%2))) -- Left Center , ("t", withFocused (keysMoveWindowTo (halfWidth, halfHeight) (1%2, 1%2))) -- Center , ("n", withFocused (keysMoveWindowTo (screenWidth, halfHeight) (1, 1%2))) -- Right Center , ("m", withFocused (keysMoveWindowTo (0, screenHeight) (0,1))) -- Bottom Left , ("w", withFocused (keysMoveWindowTo (halfWidth, screenHeight) (1%2, 1))) -- Bottom Center , ("v", withFocused (keysMoveWindowTo (screenWidth, screenHeight) (1,1))) -- BottomRight ] where screenWidth = 3440 screenHeight = 1440 halfWidth = div screenWidth 2 halfHeight = div screenHeight 2 I would appreciate any pointers that would help me understand and figure this out.