Macro/Rule/Quick Action for Calendars

I would love to have the ability to create a quick action, macro, or rule for calendar events. For instance, I block off time on one of my calendars for getting some work done. This reserves that time and suggests to my team that I’m unavailable. I’d like to be able to quickly mark that event as private and then add a specific tag to the event. A related one would be if I’ve blocked off time on one calendar, I could more or less automatically create one of these private appointments on another calendar.

These are 2 use cases to be instructive.

Is there any way to make this happen?