You may reorder your assignments or folders.
To move an assignment or folder, simply click and drag to the new desired location.
To move an assignment or folder OUT of a folder, click and drag to the top of the folder where it says Work and hover your cursor there until it turns green.
This will take you back out to the folder list view where you can drag the selected folder or assignment to the bottom of the list.
If there is no empty space at the bottom of the list, go to the very bottom. The entire list will highlight in green. Drop it there.