This is currently not supported, but now that the adapters are here, it should be easier. A workaround now would be to implement your own MorphicContainerAdapter and to have your own bindings Ben On 09 Nov 2013, at 19:48, btc@openinworld.com wrote:How might I get behaviour like TableLayout [1] with Spec. This is for laying out a variable number of icons in a Command Toolbar, that when the width is reduced the icons wrap around to a second line. [1] http://pharo.gemtalksystems.com/book/LanguageAndLibraries/GUI/PolymorphTutorial/TableLayout/ cheers -ben