How to get cell context?

This is the layout of my CV

I'm using an XFBR in rows (and columns); the rules for each scenario are different; how do I get the context from the columns?
In other words, when the scenario is Budget I want to apply specific rules for that scenario, same thing for Actual. 

This would be the script:

Namespace Workspace.__WsNamespacePrefix.__WsAssemblyName.BusinessRule.DashboardStringFunction.REP_ParamHelper
	Public Class MainClass
	       Public Function Main(ByVal si As SessionInfo, ByVal globals As BRGlobals, ByVal api As Object, ByVal args As DashboardStringFunctionArgs) As Object
			Try
                             If args.FunctionName.XFEqualsIgnoreCase("GetAccount") Then 
                                    //Do something
                             End If
		End Function		
	End Class
End Namespace