In the rich text editor:
@Bravo2Zero
In a comment:
[Bravo2Zero](https://chowlings.com/user/Bravo2Zero)
For Names and Avatars:
In the rich text editor:
%Bravo2Zero
In a comment:
[](https://chowlings.com/user/Bravo2Zero) [Bravo2Zero](https://chowlings.com/user/Bravo2Zero)