Here you can specify the properties of the cameras you wish to stream.
Stream Name
This is the name the cameras will be referred to on the connection web-page.
Video Device
This is the actual camera device that you wish to display.
Audio Device
This is the device you wish to source the audio from. Most cameras have an associated audio device and normally your should select that device here. You can select any device if you so wish.
Place Timestamps
This allows you to place the current time into the corner of the video for this camera.
Open Video Device Settings
This allows you to change the settings of the camera. It will open a dialogue that is camera specific. For details see the documentation of your camera.