MacOS Development for Beginners Part 2 - First Responder Popup

Tutorial for Egg Timer says to control-drag Start menu item to orange block (first responder) and then click on “startTimerMenuItemSelected” in the popup. However, when I try this, that selection does not appear in the popup. At this point I am stuck and do not know how to continue. Any suggestions? I am running the latest versions of Xcode and OS Sierra.

Click on the First Responder object (orange block). Then look at the inspector pane on the right side of your screen. What class is it? Does that class have startTimerMenuItemSelected?