It sends a notification to everyone announcing they are invited - I want it to be like a water-cooler drop-in chat location, I'm the boss - if I press "huddle"

It sends a notification to everyone announcing they are invited - I want it to be like a water-cooler drop-in chat location, I'm the boss - if I press "huddle" I get 30 people join because Slack tells them "boss started a huddle"