v. 0.1
https://raw.githubusercontent.com/ChrisRaven/Ender-for-Eyewire-II/main/Ender.user.js
This addon is a simple JavaScirpt script using TamperMonkey, made to simplify adding the green (True End 
) annotations.
It’s usage is quite simply: press and hold Alt key (Option for Mac) and click the left mouse button at the point, where you want your annotation to be added.
For those, who don’t know, how to use TamperMonkey, here’s a great post made by @sorek_m:
Installing TamperMonkey.