With the MP Media Folder it is only possible to replace image files at the wordpress media manager but it is not possible to replace other media e.g. pdf-files at the media manager.
We are working at an Intranet solution with a knowledgebase for our dental office and if I have some changes at a document I have to replace this pdf-file.
A pity that it is not possible. Think it would be a great help for many users if it would be possible to replace all kind media file at the media manager.
Maybe a suggestion for improvement for the next update