I have two questions about gateway 3DS: 1. There is an potion in gateway to "BACKUP 3DS SAVEGAME" and "RESTORE 3DS SAVEGAME". The save goes to and from SD card. Can I use this option to backup and restore saves from DS (not 3DS) games? If no, are there other options to do that with DS games? 2. About inject a header thing. This header can be from any 3DS game or a 3DS game with online functionality? And then I can inject it in any other ROM (not necessary the same game) and play online?