So I've searched the forums here already and I found a link to this video: Record Navigation using a dropdown in Filemaker - YouTube
Which seems to be EXACTLY what I need. However he does some extra steps with ID numbers that I am not sure I need. All of my records have very unique names, so I do not need to search for an ID number that is unique. That means I don't need to create two windows and link them and blah blah...
Screen shots of how I set up:
So I followed his steps omitting these but then whenever I execute the drop down menu, this message appears:
I must be missing something very simple. Please help!!