Index: trunk/MagicSoft/Mars/mbase/MEvtLoop.cc
===================================================================
--- trunk/MagicSoft/Mars/mbase/MEvtLoop.cc	(revision 1472)
+++ trunk/MagicSoft/Mars/mbase/MEvtLoop.cc	(revision 1473)
@@ -50,4 +50,21 @@
 //  the progress graphically...                                             //
 //                                                                          //
+//                                                                          //
+// You can create a macro from a completely setup eventloop by:             //
+//   ofstream fout("mymacro.C");                                            //
+//   evtloop.SavePrimitive(fout);                                           //
+//                                                                          //
+// You will always need to check the macro, it will not run, but it         //
+// should have al important information.                                    //
+//                                                                          //
+//                                                                          //
+// You can also write all this information to a root file:                  //
+//   TFile file("myfile.root");                                             //
+//   evtloop.Write("MyEvtloopKey");                                         //
+//                                                                          //
+// You can afterwards read the information from an open file by:            //
+//   evtloop.Read("MyEvtloopKey");                                          //
+//                                                                          //
+// To lookup the information write it to a file using SavePrimite           //
 //                                                                          //
 //////////////////////////////////////////////////////////////////////////////