Hi, what do you think of adding this in Pharo ? |taskbar tileWindowsBlock| tileWindowsBlock := [ |windows numberOfColumns numberOfRows windowWidth windowHeight| windows := (World submorphs select: [:m| m isSystemWindow and: [m isNotMinimized]]) asOrderedCollection. numberOfColumns := windows size sqrtFloor. numberOfRows := (windows size / numberOfColumns) rounded. windowWidth := World width // numberOfColumns.. windowHeight := World height - taskbar height // numberOfRows. Matrix rows: numberOfRows columns: numberOfColumns tabulate: [:row :column| |window| windows ifNotEmpty: [ window := windows remove: windows first. window bounds: ( ((column - 1 * windowWidth) @ (row - 1 * windowHeight)) extent: (windowWidth) @ windowHeight) ] ] ]. taskbar := (World submorphs detect: [:m| m isTaskbar]). taskbar addMorph: (IconicButton new target: tileWindowsBlock; actionSelector: #value; labelGraphic: taskbar theme smallWindowIcon; color: Color transparent; yourself). Laurent Laffont - @lolgzs <http://twitter.com/#!/lolgzs> Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/ Developer group: http://cara74.seasidehosting.st