The Flexible Layout (std_flex_layout) weblet's properties are:addBackButtonbackButtonSwatchbackButtonTextcontentSwatch (deprecated)footerFullscreenMode footerPositionfooterSwatchheaderFullscreenMode headerPositionheaderSwatchpageSwatchpersistentFooterIdshowFootershowHeadershowMessagessidebarPositionSmallScreenuseAjaxvalidationErrorDisplayvalidationTimewindowTitle