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