[DaVu]

This would be a pretty cool feature and I like the idea. Just be aware, that this is not as easy as you might think. 

If you set the skin into debug mode, you will see that this section uses the same xml file as you would enter "movies" -> "titles"....it's MyVideoNav.xml

The content which is shown on those sections is then created by Kodi core code by calling the videodatabase. From the home-menu, if you hit the "Genres" button, we are calling: videodb://movies/genres/

For titles: videodb://movies/titles/

and so on.

You could probably show the content of specific genres if you are calling a specific genre like: videodb://movies/genres/1/ where the "1" is the specific "genre-id" in your database. Unfortunately those IDs aren't consistent over multiple Kodi instances. It's the same as for actor-IDs in your database. If you open the MyVideos119.db file with a SQL viewer you will see the genre IDs.

Make a screenshot, delete your DB and rescrape it and you will see that the genre-IDs will differ from before. 

So for your request, we have to write a new view, probably change a little bit of core code and further more, add a bunch of settings to be able to let the user choose which kind of genres are shown there. So we have to make settings for each existing genre. Currently (and I've only added one of my sources) I have 32 different genres listed. Some are in german, some are in english. So it will be 32 additional settings (one setting for each genre ID to be able to let the user decide which one to show first and which one last). We would need the Genre-IDs to get the videos which are related to them. 

To expand your sketch above just imagine for each row a call like: videodb://movies/genres/1/ to show the videos for the specific genre. So you will need a setting for each to be able to configure the genre-ID and then make sure, every genre is listed

Generally the "Genre" Category is meant to list every genre which is on the database and not the movies which are related to them. 

TBH, as much as i like the idea, I highly guess this won't ever happen. Estuary is meant to be a very basic skin with very basic functionality. Feel free to use something else. There are way more flexible skins out there which probably will provide such a functionality. But implementing this is a real BUNCH of work which has to be done and, furthe rmore, needs to be maintained. 

So I guess we have to say "sorry".