Try using the Outliner in the editor, you can trim down the number of columns (and maybe hiding synopses) to make it simple like the Binder, and then close the real Binder to have a streamlined outlining window left behind. The only real limitation with this method is that you can’t view the entire Binder from it (since editor group views always look “down” from the thing you select). But that’s not huge problem since you can use the View/Go To/ menu to hop about top level folders easily. This is also accessible from the header bar icon menu. It is worth noting that split has its own outline settings, thus if you do still want an outliner with a lot of detail, you can use one for a simple display and the other split for details.
I have some projects that are mostly just “notepads”, and for these, this method works great. In fact I have mine set up as a Layout, so I can switch to that style of working whenever the mood strikes.
The one other thing: you’ll need continue using the Binder to import, if you use drag and drop. At this time you can’t drop files into the editors. But that’s another very minor issue (for me anyway). The idea is to have a cleaner window while your working, not to completely abolish the Binder. Popping it open and closed when needed is no hassle.