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