The option you are looking for is called volume on startup. However, it is a global setting. You can't have different volumes for different presets.

It is located under setup -> advanced tab for 861 in Windows app. I can't find that option in the 568 setup.

Stacey Spears
Co-Creator, Spears & Munsil High Definition Benchmark, Blu-ray Edition and Lighthouses of the Pacific Northwest.