Calendar Groups

Greetings,

I am using Mac OS 10.10.5, Calendar App v8.0 (2034.9).

I was looking at the help menu>Keyboard Shortcuts, and one caught my eye. A feature from several OS versions ago, that I loved, and miss dearly.

Shift+Command+N = Add a new calendar group.

I press that key combination, and get the error sound. I dug through the drag down menus, but can not find it.

Is the Calendar Help Keyboard Shortcuts out of date, or am I doing something wrong. I would really love that feature back. Cleans up the sidebar a TON.

Thanks,

BC Keller