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