Task: Edit the event called My Birthday and make a change in location from New York to California.
Steps:
Click on My Birthday event 
Click on the edit icon at the top right corner of the screen 
Click on New York to change the location.
Click on the cross icon at the top right corner of the screen to remove the New York 
Type California in Add location section
Click on the first suggested result to select the location.
Click on the Save button to save changes to this event.