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