Hello. In a previous mail, I've introduced a module for automatic placement of floating windows, and mentioned difficulties on getting it to compose correctly with other hooks. The fact is, the method I used to place windows in a way compatible with simple(st)Float (set the position at the X level) was brittle at best, and stopped working as soon as I tried to make my hook compose correctly with others. So I've dropped simple(st)Float support in placeHook, thanks to which I've been able to revrite it as a perfectly well-behaved pure hook that composes without trouble. (placeFocused still supports WindowArranged windows, though). This version is simpler and much more confidence-inspiring, and I'm satisfied with it, so it's final as far as I am concerned (modulo bug fixes of course). As for reliably supporting a simpleFloat-like layout in the placement hook, I can't think of a way of doing it that wouldn't involve writing a new Layout and ad-hoc ManageHook combinators, defacing the xmonad core library with ugly non-general code, breaking a few abstractiomn barriers, and still having to pray to God that the thing indeed works. So I'm not going to bother with it for now. My second patch (floatnext.dpatch) is a simple module I wrote when I decided to screw floating layouts. It provides keybindings such as "Float the next spawned window" or "Float all new windows until I hit the key again". Hoping someone finds these useful, Quentin