No :)
You add it yourself to the database
I know,i know,but it isn't as hard as it sounds.First,open the scenario in the editor.Write somewhere the name of the author,the number of turns,the date of the scenario and the total number of points of both sides.Then go to the 'Scenarios' section(the top link under G-4 Supply) and from the right menu and go to 'Calculate scenario SM'.Determine the scenario's SM from the table.Then go to 'Add a Scenario Info to DB' and input the required data.Remember to check the 'custom' option from the 'Is this a custom or a stock scenario?' field then hit the 'Add new scenario' button.You can also upload the scenario-in the next screen-to the blitz server so others can enjoy it as well :)
Hope this helps