The typical way I've seen this used is almost like pair programming. One user will write a draft of something, or add an image or chart while on a conference ca

The typical way I've seen this used is almost like pair programming. One user will write a draft of something, or add an image or chart while on a conference call with the other editor(s). Honestly, I see it a lot more with spreadsheets than with rich text, but the use case is there. It was one of the features that put Google docs on the map back in the day.