You can use the @mention feature to call out special attention to people and pages within Samepage.
@person mention: Type "@person's name" in any chat conversation. That person will receive a red dot notification with an "@" symbol, which lets them know they've been mentioned.
@page mention: Type "@page name" in any chat conversation or page to reference another page. Any user can then quickly link to that other page for more information.
Below is a quick clip showing how to use @page mention and @person mention: