In the rich text editor:
@smoovla1
In a comment:
[smoovla1](https://chowlings.com/user/smoovla1)
For Names and Avatars:
In the rich text editor:
%smoovla1
In a comment:
[![smoovla1's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/smoovla1) [smoovla1](https://chowlings.com/user/smoovla1)