Use ToolTips on child elements in a component's data provider
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:VBox> <mx:LinkBar dataProvider="{vs1}" borderStyle="solid" /> <mx:ViewStack id="vs1" borderStyle="solid" width="100%" height="150"> <mx:Canvas id="search" label="Search" toolTip="Search Screen"> <mx:Label text="Search" /> </mx:Canvas> <mx:Canvas id="custInfo" label="Customer" toolTip="Customer Info Screen"> <mx:Label text="Customer" /> </mx:Canvas> <mx:Canvas id="accountInfo" label="Account" toolTip="Account Info Screen"> <mx:Label text="Account" /> </mx:Canvas> </mx:ViewStack> </mx:VBox> </mx:Application>