By default all user interfaces on all machines can access a channel. The number of user interfaces which can access the selected channel can be restricted using this User Interface tab.
Only allow the following registered user interfaces to connect:
- Only allow the following registered user interfaces to connect: Activate this checkbox to give only the users listed below access to the selected channel.
- Add Interface: Click on the Add interface button to add a new interface.
- List of registered user interfaces: Lists all interfaces which can connect to the selected channel.