The ExtendedFileChooser replaces the JFileChooser component by default as long as a SyntheticaLookAndFeel will be used. The ExtendedFileChooser automatically appears when you call JFileChooser#showOpenDialog or JFileChooser#showSaveDialog. Because SyntheticaAddons also supports Windows and Metal Look and Feel you should use this component instead of JFileChooser to get extendend capabilities like sorting, copy, cut and paste. Simply right-click into the dialogs filepane to open a popup menu with all available options.

The ExtendedFileChooser is part of the SyntheticaAddons package.