[the_other_guy]

this may be the way to go
Video nodes https://kodi.wiki/view/Video_nodes

addons library node editor

pick parent node give it a name pick type

click on the new node open it and add new node

open node and click add path add path

add content gives you a way to filter the movies

xml:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

<node order="30" type="filter">

 <label>10024</label>

 <icon>DefaultMovieTitle.png</icon>

 <content>movies</content>

 <order direction="ascending">sorttitle</order>

</node>

to do this in library node editor
create new node called kids
open new node pick movies
*add rule
(title contans (name may be movies)
( title  (mpaa rating)

xml:


PG.xml



< ?xml version='1.0' encoding='UTF-8'?> 

< node order="0" type="filter"> 

 <icon>defaultaddonssearch.png</icon>

< label>Rated PG</label>

< name>Rated PG</name>

 <content>movies</content> 

< match>one</match>



    <rule field="mpaarating" operator="is">

        <value>Rated PG</value>



< /rule> 

< /node>