I believe I have the same setup.
What you have missed in the screenshots are the settings under the Storage | Record Schedule menu.
These determine the recording actions in response to the events that have been configured.
Check out the 'line_crossing_4.jpg' attachment in the post above.
*edit*
I followed setup in the attached bulletin.
That bulletin is from 2014 and is obsolete.
Things have moved on a lot in the NVR firmware since then - the 7600NI-Ex series can now record line crossing, intrusion detection and many other video analytics types.