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