This is the "Config" tab where you can dynamically create your own file types that haven't been defined
yet by default.
The left part of the window shows the list of defined file extensions (or types). If your file isn't there
yet, you'll need to create a new one using the "Add" button.
When adding an extension, you will be asked for the extension and a description of that file. You will
also want to define the comment style this new file type uses. You may use the most common comment
types already defined or you may also make your own new one.
To define a comment style, simply click on the "New" button and you can enter details such as the
comment start tag, optional end tag, and an optional column field (if you comments should appear in
a certain column - such as Cobol comments).
When done, just click on the "Save" button. You may then want to go to the main screen
to start a new count with your new extension type!