Index: program/localization/en_GB/messages.inc
===================================================================
--- program/localization/en_GB/messages.inc	(revision 742db41b1be742c8eb82c16fb4ee5135e7ea22d4)
+++ program/localization/en_GB/messages.inc	(revision c75f8e9526d629c9b5aa7396885ae76d20c5c255)
@@ -48,4 +48,5 @@
 $messages['errorsaving'] = 'An error occurred while saving';
 $messages['errormoving'] = 'Could not move the message';
+$messages['errorcopying'] = 'Could not copy the message(s)';
 $messages['errordeleting'] = 'Could not delete the message';
 $messages['errormarking'] = 'Could not mark the message';
@@ -87,4 +88,5 @@
 $messages['errorsavingcontact'] = 'Could not save the contact address';
 $messages['movingmessage'] = 'Moving message...';
+$messages['copyingmessage'] = 'Copying message...';
 $messages['receiptsent'] = 'Successfully sent a read receipt';
 $messages['errorsendingreceipt'] = 'Could not send the receipt';