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