If you want to set default groups for all your organisation users, go to this article:

Setting default groups

Icon For Star
About Teams

Grape uses so-called "Teams" to group users in your organisation. They can be manually managed or connected to a user management system like ActiveDirectory.

Teams Page

Click the cog wheel in the top-left corner of your chat to open the context menu and click the "Manage Members"-Button to get to your members page. 

Click on the "Teams" Tab to get to the teams management page.

Create a team

Click "Create new team" and fill out the data you want to add. If you are using Active Directory you can map the teams to a connected Active Directory group.

You can add all groups you want them to automatically join.