In the rich text editor:
@BeeWas123
In a comment:
[BeeWas123](https://chowlings.com/user/BeeWas123)
For Names and Avatars:
In the rich text editor:
%BeeWas123
In a comment:
[](https://chowlings.com/user/BeeWas123) [BeeWas123](https://chowlings.com/user/BeeWas123)