+import jalview.io.JalviewFileChooser;
+import jalview.io.JalviewFileView;
+import jalview.jbgui.GCutAndPasteTransfer;
+import jalview.json.binding.biojson.v1.ColourSchemeMapper;
+import jalview.schemes.ColourSchemeI;
+import jalview.util.MessageManager;
+
+import java.awt.Toolkit;
+import java.awt.datatransfer.Clipboard;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.StringSelection;
+import java.awt.datatransfer.Transferable;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseEvent;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.swing.JMenuItem;
+import javax.swing.JPopupMenu;
+import javax.swing.SwingUtilities;