The Export preferences pane is used to choose a default citation style or bibliographic data format and configure other settings for copying data from Zotero.
For information on adding and removing citation styles from Zotero, see Citation Styles and the Cite pane in Zotero preferences.
Quick Copy allows you to quickly export items in the specified format. You can set your Quick Copy Default Format to either a citation style, such as Chicago Manual of Style (note), or a bibliographic export format, such as BibLaTeX or Zotero RDF. Press Ctrl/Cmd-Shift-C to copy the full reference to the clipboard. You can also drag the item to any text box in another program. If you set your default format to a citation style, press Ctrl/Cmd-Shift-A or hold down Shfit before dragging to copy the in-text ciation or footnote.
Besides setting the default Quick Copy format, you can also change these Quick Copy settings: