Notification Sidebar Widgets in Yosemite Not There
Maybe I have no idea what I'm doing, but I'd like to add calculator, weather, and stocks to my sidebar notification center. Using the new Yosemite OS. iMac is Mid-2011. I know how to add them, but I don't even see them to click the green plus sign. Please see pic. Apparently all I can add is 'social.' Am I not seeing something? Thanks.
iMac (27-inch Mid 2011), OS X Yosemite (10.10)