To create a new channel within a hub, simply click on the "Add Channel" link on the left side navigation within the hub you want the new channel to appear:
When creating channels you have the following options:
- Setting channel permissions
- Setting member rights
These are set when creating a channel. To change these settings, navigate to the channel and click on icon to the right of the channel's name:
Note: You will need a paid plan to select private, invite only channels.