wish to suggest you if you can ,
Create any numbers of Calendar with different color combinations.

Day/Date/Timing/Area.... are the common factors in all calendar. Even then segregation under different headings ,gives more clear picture.

So ,In " create new calendar " Column if you add "New Calendar Name" , it will be more useful.

Right now in , Business Calendar; Birthday, Google , Solar , etc Calendars can be added or dropped. Similarly if new calendar been created ,such adding and dropping facility.

In short , In one Calendar hundreds of new calenders can be synchronized and can be seen whenever needed.