While I'm editing a document, sometimes I click on another tab and go elsewhere, later to come back to where I was in the same workspace under Documents, then find myself in edit mode of a document. However, because the name of the document isn't shown anywhere, sometimes I forget what I'm editing (yes, even with the context, especially when I've just started it and there's not much in it.)
Would be nice to consider displaying the current document name being edited somewhere while in that mode.