Copy Mac Calendar items from one calendar to another in the app
- Select the calendar you wish to copy events from (it’s recommended that you have the other calendar’s visibility disabled), and click to select an event (shift+click to select multiple events).
- Then right-click or control+click to pull up the pop-up menu. Choose Copy.
- Hide the source calendar, and make the new calendar visible. Click on the day to use as the first day that will have events pasted from the other calendar, right-click or control-click, and then choose Paste. It should paste all the items you copied into the same pattern that they appeared in the source calendar (for example, if you selected items from the first Monday in the month, and then additionally, items from 2 days later, then click on the first Monday in the month on the new calendar and paste, it will paste all items on the correct days and time periods.