Can 1 have 2 properties share on calendar?

I have 1 property but want to sell it 2 different ways. Can I treat one property as 2 properties and can i have them share one calendar, or would I have 2 calendars that sync ? Any guidance is appreciated.

Yes, you can create 2 properties, each with their own listings and calendar. Use Mutual Blocking to make sure the calendars are both correctly blocked between them:

https://www.ownerrez.com/support/articles/combined-properties-blockoff-lockoff