Create a Team
Click on Teams on the left-hand side, then click on join or create team.
Under the templates, click on the staff template.
Click use this template.
Click private.
Name your Team and give it a description.
Add members to your Team. Click add.
Create a Channel in a Team
NOTE: You do need to have access to create a channel in your Teams group, unless you created the Team.
Go into your Team and click the three dots next to the Team name.
Click add channel.
Enter in your new channel name, channel description, and select private as the channel type.
Click create.
Add your members to the private channel.