I'm not new to upwork but I can't find how to edit part of my profile. When I started on Upwork many years ago I added some work experiences and past employment that no longer apply to what my main area of expertise is. I would like to remove them but I can't figure out where to go in the profile system to remove or edit them. It lets me add new items (I see the + sign) but there seems to be no way to remove the old ones. How do I do that?