I'm trying to find a ciss.Side Menu option in DNN that is expandable and looks good.  We are using the VerticalArrow menu, but find that the only view we can get out of it on the side navigation bar is evertyhting expanded.  So, for every parent page, all the sub-pages show up beneath it.  We can't collapse it.  The only side menu option I can find that does this is the CSS CU3ER Tree.  Is there anything else out there?  Should more of these options have an expandable tree view option?