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