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