The ability to change an item to an other calendar

It is really annoying this is not possible.  I make it work by deleting an item and re-entering it in the other calendar, but most applications allow you to just change the calendar. I often enter something in my own personal calendar first and then when it becomes concrete I move it to a "family calendar" so this is a feature I would use frequently.

I just downloaded OneCalendar to replace Microsoft Calendar as I don't want to use the new Outlook. I was disappointed and surprised to learn that I couldn't change between my iCloud calendars.