In the rich text editor:
@SkoogeyDoo
In a comment:
[SkoogeyDoo](https://chowlings.com/user/SkoogeyDoo)
For Names and Avatars:
In the rich text editor:
%SkoogeyDoo
In a comment:
[](https://chowlings.com/user/SkoogeyDoo) [SkoogeyDoo](https://chowlings.com/user/SkoogeyDoo)