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