Hello XMonad, I apologize for the bulk delivery, these are all things I wrote over the last week and I didn't really want to stop coding to send updates (or eat, or sleep, for that matter --). The basic idea was to implement the layout used in wmii. For those not familiar with it: - Windows grouped in resizable columns - Each column has its own sub-layout, either full, vertical or "stacked decoration" - You can of course move windows between columns, create new columns, etc. This gave rise to a number of modules, which the rest of this mail describes. To get a quick idea, you can also look at the few screenshots I put up: http://ceii.posterous.com/new-xmonad-layout. #1: XMonad.Layout.Groups A generic version of the wmii thing: windows arranged into groups, each with its own sub-layout. You provide both the (starting) layout for new groups, and the layout that arranges the groups themselves on the screen. Tis doesn't fit XMonad's layout interface that well, and indeed I ended up having to completely decouple the layout's idea of window ordering from XMonad's. For this reason, the usual swapUp/Down and focusUp/Down don't work here; the Groups module provides messages that can be used instead, and see #2 for a more flexible interface. #2: XMonad.Layout.Groups.Examples You can do a lot of fun things with the Groups combinator, so I put a few examples in a dedicated module. It also contains many useful X actions for Groups layouts, including focusUp/Down, swapUp/Down, etc. actions that work both for them and for standard layouts (using X.A.MessageFeedback). There are three example layouts: - The wmii layout, pretty faithfully cloned with the exception that I was too lazy to write a stacked layout and used tabs instead. The columns are managed by a ZoomRow (#3), so they can be individually resized and/or maximized. - A "row of columns" layout, with both rows and columns using ZoomRows. - A "tiled tabs" layout that arranges windows into tabbed groups, and the groups themselves according to XMonad's default algorithm (Tall ||| Mirror Tall ||| Full) #3: XMonad.Layout.ZoomRow A layout that arranges its windows into a horizontal row, and allows to freely resize each of them using ZoomMessages. #4: XMonad.Layout.Renamed A LayoutModifier and DSL for modifying the description of a layout. This is for when you want to modify a layout with a dynamic description, and using Named would freeze it. #5: XMonad.Util.Stack I ended up doing quite a bit of non-trivial (Maybe Stack) manipulation, so I wrote a separate module for that. It provides maps, folds, filters and the like, as well as the whole focusUp/Down-swapUp/Down-insertUp/Down suite with consistent types. I've been using these for a few pretty active days now but they are by no means fully tested, feedback is welcome.