Feature Request Project View Multiple Expandable Folders

Here is a mock up for what it might look like, I have the Modifiers folder selected, I see the contents, which are expandable and are all currently expanded. I would be able to move the contents around, from folder to folder here. Clicking the folder would do the expand/collapse, the icon to the left is telling you what clicking it will do. If it's closed, it's a + if it's empty, there's nothing. Cheers

 

This wouldn't be impossible to implement yourself as its own editor window. Much easier these days with UI toolkit as well.