apply patch dwm-winview-gaplessgrid-gridall-6.5.diff

dwm.1

@@ -110,6 +110,9 @@ Increase master area size.
 .B Mod1\-h
 Decrease master area size.
 .TP
+.B Mod1\-o
+Select view of the window in focus. The list of tags to be displayed is matched to the window tag list.
+.TP
 .B Mod1\-Return
 Zooms/cycles focused window to/from master area (tiled layouts only).
 .TP