That video is great. The multiple cursors GUI is a brilliant way to visualize a repetitive operation (i.e., one that often would be recorded and executed by macro). I was going to ask if anyone else implements it, but I thought I'd search first. Does anyone know more about it? Its origins? More functionality?

* Vim

https://github.com/terryma/vim-multiple-cursors

* Atom (I'm not sure if it's the same functionality)

https://atom.io/packages/multi-cursor

https://www.lynda.com/Web-Development-tutorials/Selections-m...

* Sublime

https://stackoverflow.com/questions/14963775/multiple-cursor...

EDIT: Well it seems like Sublime has had this feature since at least 2012. I suppose I should have considered text editors besides Vim, and I might have known sooner. I'll leave this post in case there are others as narrow-minded as I am ...