To find the closed channel, in the AirSend dashboard's Channel drop-down list, choose Show Closed or Show All. The channel appears on the desktop.
Reactivate the channel one of the following ways:
From the dashboard: click the More icon (three dots) on the channel and choose Activate channel.
The channel is reopened.
Open From the open channel: oen the channel, and in the channel toolbar, click the Channel settings icon: The Channel settings dialog box opens. Click the Operations tab, and next to Reopen Channel, click Reopen. Then confirm that you want to reopen the channel. The channel is reopened.