Flex :: How To Create Link Buttons With Data-Driven Text

I've made a component based on a mx:TitleWindow that contains linkbuttons that I'm using as a context-menu. The TitleWindow component contains link buttons like this:

[Bindable]
private var _showEmailThis:Boolean = false;
[Bindable]
private var _showApproveThis:Boolean = false;
[Bindable]
private var _showReviewThis:Boolean = false
[Code] .....

This component contains a large number of links and is re-used by multiple modules in the same application. Within each module, this component is used when a user clicks on a row in a datagrid. The code looks like this:

In "Requests" module:
private function dgRequests_click(event:MouseEvent):void {
menu.showApproveThis = true;
menu.showReviewThis = true;
}

In "Performance" module:
private function dgPerformance_click(event:MouseEvent):void {
menu.showEmailThis = true;
menu.showReviewThis = true;
}

As you can see, the visibility of individual linkbuttons is controlled within each module by setting boolean properties. If I alter this component to use a renderer, how can I control the visibility of the linkbuttons from the code in each module (there are over a hundred links with different functionality - not every link will be used in each module)? Note: it is not known from the back-end which grid within which module uses which link. This is set in the front end within each module's actionscript file. E.g., if the XML looks like this:
[Code] .....

And I set the Email link to show in the module like this:
private function dgPerformance_click(event:MouseEvent):void {
menu.showEmailThis = true;
}

How do I make it take effect? Is there a way to control the visibility of a linkbutton within an item renderer in a component from the module that uses that component?