You can find the index files I reference in the video here.
I don’t have a full technical understanding of how this feature works, so I tried to avoid explaining what is going on with the file. I think I am explaining it well enough that if you imitate my steps, you will be successful in most attempts. If there is anything unclear, let me know and I will try to clarify it in a future post.
One thing I did not cover in the video are the page offset settings at the bottom of the index settings screen. I have attached about 10 indexes to my forScore library and only twice did I need to use those buttons. In some cases, the CSV score may be offset by a few pages leading to the index not linking you to the correct songs. In these cases, I simply fiddled around with the plus and minus buttons until I got the result I wanted. I would be happy to redo the video with that step included if enough people are interested.