diff --git a/src/helpfile.h b/src/helpfile.h
index 3c68e67e..121938b5 100644
--- a/src/helpfile.h
+++ b/src/helpfile.h
@@ -670,6 +670,10 @@ static const T_Help_table helptable_adjust[] =
   HELP_TEXT ("the image by a side comes back by the")
   HELP_TEXT ("opposite one.")
   HELP_TEXT ("")
+  HELP_TEXT ("Left clicking the picture will scroll only")
+  HELP_TEXT ("the active layer. Right-clicking will scroll")
+  HELP_TEXT ("all of them.")
+  HELP_TEXT ("")
   HELP_TEXT ("It is assimilated to the drawing tools")
   HELP_TEXT ("family.")
   HELP_TEXT ("")