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