Nav nestable dropdown icon change when open

Hi! - I’d like to use the nav nestable component and have the dropdown icon change from a + to a - when the dropdown is open (and back again once it is closed). I don’t see a native way in Bricks to do this. Has anyone solved this problem?

You can change the icon to another. I don’t know how to put it in the same place as the open icon.

in the nested menu items list there is this Toggle (close) item you can change an icon.

But i can only nest it inside the menu, and not on the place the open icon is at.
So i have it at the bottom as an “x” icon to close.

Thanks - I am aware of that item and have it set up at the top of the mobile menu using an ‘X’ and also preceded with the word CLOSE. That works great, but not what I’m trying to accomplish.