@David-M-Turner Song Maker Templates are xml files, which can be edited or created with a text editor. Some years ago we had a long discussion about this topic here: https://www.magix.info/us/forum/song-maker-ai-templates-and-functions--1283690/#ca1729391

But a little while later, the user @Fonzy made a very useful tool to create custom templates. This makes it much easier. You can find it here: http://enkisoft.nhely.hu/index.html