tilt sideways and twist out

In a message dated 9/27/2015 10:51:34 A.M. Eastern Daylight Time,
joe.novak.6@GMAIL.COM writes:

Is there  a trick to placing the clips into the pre-drilled holes so i don't
snap the  top of the head?
I assumed that I could go in from the back side of the  panel, but its
proving to be problematic for me this  am...