Is there a way to see the total file size of all duplicate files ?

Question / Problem

Is there a way to see the total file size of all duplicate files ?

Answer / Solution

To see the total size of all duplicate files, mark all entries in the 'Duplicate Files ' list (Ctrl-A). The total size of all the files is then shown in the status bar.
Note: This is the size of all the files shown in this list, so there are also the original files included.