Mega2560 update

FrSky was missing and heli was listed two times
Doc update

companion/src/firmwares/opentx/opentxinterface.cpp

@@ -1094,8 +1094,8 @@ void registerOpenTxFirmwares()
   OpenTxFirmware * openTx;
 
   Option ext_options[] = { { "frsky", QObject::tr("Support for frsky telemetry mod"), FRSKY_VARIANT }, { "telemetrez", QObject::tr("Support for telemetry easy board"), FRSKY_VARIANT }, { "jeti", QObject::tr("Support for jeti telemetry mod"), 0 }, { "ardupilot", QObject::tr("Support for receiving ardupilot data"), 0 }, { "nmea", QObject::tr("Support for receiving NMEA data"), 0 }, { "mavlink", QObject::tr("Support for MAVLINK devices"), MAVLINK_VARIANT }, { NULL } };
-  Option nav_options[] = { { "rotenc", QObject::tr("Rotary Encoder use in menus navigation") }, { "potscroll", QObject::tr("Pots use in menus navigation") }, { NULL } };
   Option extr_options[] = { { "frsky", QObject::tr("Support for frsky telemetry mod"), FRSKY_VARIANT }, { "jeti", QObject::tr("Support for jeti telemetry mod"), 0 }, { "ardupilot", QObject::tr("Support for receiving ardupilot data"), 0 }, { "nmea", QObject::tr("Support for receiving NMEA data"), 0 }, { "mavlink", QObject::tr("Support for MAVLINK devices"), MAVLINK_VARIANT }, { NULL } };
+  Option nav_options[] = { { "rotenc", QObject::tr("Rotary Encoder use in menus navigation") }, { "potscroll", QObject::tr("Pots use in menus navigation") }, { NULL } };
   Option dsm2_options[] = { { "DSM2", QObject::tr("Support for DSM2 modules"), 0 }, { "DSM2PPM", QObject::tr("Support for DSM2 modules using ppm instead of true serial"), 0 }, { NULL } };
 
   /* 9x board */
@@ -1253,15 +1253,15 @@ void registerOpenTxFirmwares()
   /* MEGA2560 board */
   openTx = new OpenTxFirmware("opentx-mega2560", QObject::tr("OpenTX for MEGA2560 board"), BOARD_MEGA2560);
   addOpenTxLcdOptions(openTx);
-  openTx->addOption("heli", QObject::tr("Enable heli menu and cyclic mix support"));
+  openTx->addOptions(ext_options);
+  openTx->addOption("PXX", QObject::tr("Support of FrSky PXX protocol"));
+  openTx->addOptions(dsm2_options);
   openTx->addOption("heli", QObject::tr("Enable heli menu and cyclic mix support"));
   openTx->addOption("templates", QObject::tr("Enable TEMPLATES menu"));
   openTx->addOption("nofp", QObject::tr("No flight modes"));
   openTx->addOption("nocurves", QObject::tr("Disable curves menus"));
   openTx->addOption("sdcard", QObject::tr("Support for SD memory card"));
   openTx->addOption("voice", QObject::tr("Used if you have voice module"));
-  openTx->addOption("PXX", QObject::tr("Support of FrSky PXX protocol"));
-  openTx->addOptions(dsm2_options);
   openTx->addOption("ppmca", QObject::tr("PPM center adjustment in limits"));
   openTx->addOption("gvars", QObject::tr("Global variables"), GVARS_VARIANT);
   openTx->addOption("symlimits", QObject::tr("Symetrical Limits"));