Congrats on the new CC. Our 2019 CC has been home for about 3 weeks.
We have been told (by other CCRVOC members) to keep the back 4 rams up and only keep the front landing gear down.
You need to keep the battery disconnect ON...otherwise the batteries will not charge. The OEM converter is not a 3 stage converter, so if you keep it hooked to power a lot, you need to periodically check the batteries' water level. I plan (within a few years) on replacing my OEM converter with a PD converter w/charge wizard.
I wish I could store mine under cover!!
When not in use, as others have said, keep doors cracked open, otherwise a musty smell will develop.
Enjoy your Cedar Creek and consider joining the Cedar Creek RV Owners Club.
Mike