Make a video on referencing custom indicators?

In the video below just after 5:00 mins you mentioned that you would make a video on Referencing Custom Indicators.
https://www.youtube.com/watch?v=VjAeE8_pF3w&list=PLVkMnR8pfWHGMzvTka1rpJV2y9uf_AWRS&index=9&t=1004s

I'm not sure if you have made one yet, I can't find any. If you have made a video of this it would be great if you made one.
Thanks,

I will create one within 7-days.

Thank you.

This video explains it well.