Open Panel Settings by tapping the gear icon in the top-right corner of the screen. From there, open the Shared Access menu. Here you will see a list of all the users linked to the panel. From here, you can invite a new user to access your panel, or edit an existing user's access. Note that only device owners can edit and invite other users. When inviting a user that is not registered to use the app, a phone number is required. They will then receive an invite and a temporary account will be created for them.