Click the Add Channel button. The Add Channel screen appears.
In the Source field, select From Message Filter.
In the Destination field, select To File.
Click Configure Channel.
Selecting the Channel Components
In the Channel section of the configuration screen that appears, in the Channel name field,
specify a name to identify the channel on the Dashboard and in the logs.
In the other fields, provide the channel details that you used in Channel 1. See
Filling Out the Channel Details for more information.
Note that the data source you use must be the same as the one you used in Channel 1.