To map a directory, go to EDIT (DAZStudio on the Mac) --> Preferences --> Content Library --> Content Directory Manager. Under 'Current Sets' choose either DAZ Studio Formats or Poser and highlight. Then on the left, you can choose 'Add.' Browse to a valid folder path and click 'Select Folder.' This will now show up for that type of content. Click 'Accept' on the bottom and then again in Preferences.