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