So I just realized a nice hack that I hope will turn into a feature. I recently got fed up with the limited functionality of the built in menu so I made my own with a fixed div on the right side that is triggered with a button. I did this to be able to have nested menus that wipe to the left.
When I went to create the links, I copied them out of the original nav. This brought with them the CURRENT functionality where it knows what page it's on. I think these type of links should be available in the add panel because I spend hours creating another navigation bar where I had to manually change the state of the links when they were on their perspective pages.
You can take a look at cad.webflow.com