[Davey]

You can do this, just by creating in your tags for each song file in these compilations, the album artist "Top 40 Artists" or some such and likewise Album title "Edition 2018".   You probably should also set compilation "True".  I would probably create nfo files for the artist and album, so when you do a scrape, Kodi won't try to get info from online source.   You could also use artist sortname creatively to group these "artists" when you display artists node using sortname (for example, Various:Top 40, Various: Christmas).

scott s.
.

 Thanks for your response! Highly appreciated

I did as you explained. I have artist 'Top 40' now in my library. The only thing that is missing is the icon in the Artist view. All of the Artists are scraped by the Universal scraper. But this artist doesn't exist ofcourse. Adding is through a .nfo file i guess?

This doesn't work:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
    <artist>
       <name>Top 40</name>
       <style>Pop</style>
       <biography>Top 40 is de bekendste hitlijst in Nederland.</biography>
       <thumb preview="artist.png">artist.png</thumb>
       <path>Z:\Top 40\</path>
       <fanart />
       <album>
           <title>2018 Week 36</title>
           <year>2018</year>
       </album>
       <art>
       </art>
   </artist>

I named the file artist.nfo, saved here: Z:\Top 40\
Full path to the music files: Z:\Top 40\2018\Week 36

What's wrong? 

the "<fanart />" tag is wrong and not matched

My advice is keep is simple to start with, then add extra information gradually into the artist.nfo, re-scanning each time.

So start with artist.nfo as follows, saved in the z:\Top 40 directory, along with the artist thumbnail saved as FOLDER.JPG, if you want fanart, save it as fanart.jpg in same folder

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<artist>
       <name>Top 40</name>
       <style>Pop</style>
       <biography>Top 40 is de bekendste hitlijst in Nederland.</biography>
</artist>