How do I configure the Citation to default to Cold and Dark at startup rather then selecting Cold and Dark from the menu AFTER the aircraft  is selected. I don't won't to save the flight as a selection but just want it in this configuration for any scenario.

I call up the pop up  that offers the selection and click on Cold and Dark at the end of my flight, expecting a cold and dark start up for the next flight. No matter what I do the aircraft starts up with the engines running. Everything else is cold and dark though.

Try setting up your startup flight, but save the flight using a DEFAULT aircraft, which is in a cold and dark state. Then select that saved flight, and after it opens, with the default aircraft cold and dark, change aircraft to the Citation. Then re-save the flight again, but this time with the Citation.

Thanks guys for the replies, it would be nice if there was a cfg file hiding somewhere that could be changes.