Action options
Choose "Scan" to scan for channels using the specified demodulator detting.
Choose "Update" to update the demodulator setting of this channel.
Choose "Update All" to update the demodulator setting of this channel, and all other channels with identical demodulator setting
For example, if channel "XY SD" and "XY HD" both have the same demodulator setting, then editing one of the channels and choosing "Update All" will update the demodulator setting of both channels.