Use the Close channel button to close a persistent channel or a dynamic channel. This performs the same action as the IRC KILL channel command and the chatcmd /KillChannel option, each of which removes all members from the channel and closes it.

Channel  Designates the name of the channel.

Reason  Designates your reason for closing the channel. The reason is limited to 63 characters. Any information you provide in the Reason box is displayed to each member that is removed from the channel.