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