Describes the user interface (UI)
The user interface is basically a simple text editor.
Select the definition file (either by pasting or typing a name, or by clicking on the associated button).
Edit the definition file as necessary.
Select input and output directories.
Click "Process Folder"(or press F5 in editor) alternatively, click "Process Subfolders".
The interface will be grayed-out while the processing is on-going.