The Scheduled Recording window is where you create a new scheduled recording or edit an existing recording. To find this window, click the Schedule icon on the toolbar, then click the Add button to create a new schedule, or select an existing schedule and click the Edit button to change the settings of the schedule. From the Scheduled Recording dialog, you can specify the name and type of recording, the input audio device, the schedule, and whether the schedule is active or inactive.
Source
Select which video device you would like to capture from.
Audio
Select which audio device you would like to capture from.