To start a new channel:
Click the "New Channel" button at the top of the channel list
If you do not have any Channels yet, click the "Add Channel" button in the center of the screen
You can then select a single User or multiple Users that you wish to add to a channel by clicking on the User
You can also filter by Company and Crafts on the right side pane to narrow down the list of Users
You can also search for a User using the search bar at the top
You can also add a user that is not assigned to the same company as you by searching for them directly by using their phone number or email address.