I've got a vertical menu using the Hirerachical web part and transformations and it works great. Only problem I have is trying to figure out how to get the menu to stay "open" when the user navigates to something below the second level navigation. For instance in the image below I have Employment selected which is nested under Our Story. Employment is highlighted and has an arrow next to it. This is by design and works well.
What I need now is when someone selects the Benefits link which is nested under Employment, I want to keep the menu "open" and Employment selected with the arrow but I don't see how I can style it because when that 3rd level is selected there isn't anything to go off of in the navigation to set the style.
Here is an image of what it looks like "collapsed".