My Solution, the william212 method.
Fairly manual. Maybe someone knows of a tool that can expedite this?
In Kodi, create a set
Harry Potter and the Prisoner of Azkaban Collection and add the Main movie to it.
Back on your computer, create a folder for the Extras
Harry Potter and the Prisoner of Azkaban - Extras
and place all your extras in that folder.
Give each extra an identifying name
-- Azkaban Making of.mkv
-- Azkaban Creating the Vision.mkv
etcetera...
Create an nfo file for each extra and make sure to reference the set name. To make sorting easier, I set the YEAR tag to be +1 of the movie.
For example, Harry Potter and the Prisoner of Azkaban came out in 2004 so all my extras for this movie have the year set to 2005
"
-- Azkaban Making of.nfo"
Code:
<?xml version="1.0" encoding="utf-8"?>
<movie xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<id />
<title>-- Azkaban Making of</title>
<dateadded>2015-04-05 08:42:33</dateadded>
<datemodified>2015-04-05 08:42:54</datemodified>
<set>Harry Potter and the Prisoner of Azkaban Collection</set>
<year>2005</year>
</movie>
Going back to Kodi, I refresh my library and when I pull up the
Harry Potter and the Prisoner of Azkaban Collection, I have the main movie and the extras all grouped together. I have the set sorted by year so the movie appears first, followed by the extras.
I like the way the set looks when I use a double hyphen before the file name of each extra.