To see your Quick Access items in the lefthand nav bar:
You must unclick "Show All Folders" by right-clicking in the empty space on the lefthand nav (easiest at the bottom), then in the list of 5 items that popup make sure to uncheck "Show All Folders". Or uncheck in Options-->"View" tab-->"Navigation pane" at the bottom of the list-->"Show all folders" make sure to uncheck.
Show Libraries simply adds a folder icon that when clicked shows the default system libraries and has no effect on showing Quick Access items in the lefthand nav. Same with Show Network, just adds an expandable icon.