diff --git a/companion/src/firmwares/modeldata.cpp b/companion/src/firmwares/modeldata.cpp
index 679e90f5f..c6159f1e8 100644
--- a/companion/src/firmwares/modeldata.cpp
+++ b/companion/src/firmwares/modeldata.cpp
@@ -26,6 +26,7 @@
 #include "radiodataconversionstate.h"
 #include "helpers.h"
 #include "adjustmentreference.h"
+#include "compounditemmodels.h"
 
 ModelData::ModelData()
 {
@@ -1550,3 +1551,72 @@ void ModelData::limitsSet(const int index, const QByteArray & data)
 
   memcpy(&limitData[index], data.constData(), sizeof(LimitData));
 }
+
+QString ModelData::trainerModeToString() const
+{
+  return trainerModeToString(trainerMode);
+}
+
+//  static
+QString ModelData::trainerModeToString(int value)
+{
+  switch (value) {
+    case TRAINER_MODE_MASTER_JACK:
+      return tr("Master/Jack");
+    case TRAINER_MODE_SLAVE_JACK:
+      return tr("Slave/Jack");
+    case TRAINER_MODE_MASTER_SBUS_EXTERNAL_MODULE:
+      return tr("Master/SBUS Module");
+    case TRAINER_MODE_MASTER_CPPM_EXTERNAL_MODULE:
+      return tr("Master/CPPM Module");
+    case TRAINER_MODE_MASTER_BATTERY_COMPARTMENT:
+      return tr("Master/Battery");
+    case TRAINER_MODE_MASTER_BLUETOOTH:
+      return tr("Master/Bluetooth");
+    case TRAINER_MODE_SLAVE_BLUETOOTH:
+      return tr("Slave/Bluetooth");
+    case TRAINER_MODE_MULTI:
+      return tr("Master/Multi");
+    default:
+      return CPN_STR_UNKNOWN_ITEM;
+  }
+}
+
+//  static
+bool ModelData::isTrainerModeAvailable(const GeneralSettings & generalSettings, const Firmware * firmware, const int value)
+{
+  if (value < 0 || value >= TRAINER_MODE_COUNT)
+    return false;
+
+  bool ret = true;
+  const Board::Type board = firmware->getBoard();
+
+  if (!IS_TARANIS(board) || IS_ACCESS_RADIO(board, Firmware::getCurrentVariant()->getId())) {
+    if (value >= TRAINER_MODE_MASTER_SBUS_EXTERNAL_MODULE && value <= TRAINER_MODE_MASTER_BATTERY_COMPARTMENT)
+      ret = false;
+  }
+  else if (generalSettings.auxSerialMode != UART_MODE_SBUS_TRAINER && value == TRAINER_MODE_MASTER_BATTERY_COMPARTMENT)
+      ret = false;
+
+  if (generalSettings.bluetoothMode != GeneralSettings::BLUETOOTH_MODE_TRAINER && value >= TRAINER_MODE_MASTER_BLUETOOTH && value <= TRAINER_MODE_SLAVE_BLUETOOTH)
+      ret = false;
+
+  if (!IS_RADIOMASTER_TX16S(board) && value == TRAINER_MODE_MULTI)
+      ret = false;
+
+  return ret;
+}
+
+//  static
+AbstractStaticItemModel * ModelData::trainerModeItemModel(const GeneralSettings & generalSettings, const Firmware * firmware)
+{
+  AbstractStaticItemModel * mdl = new AbstractStaticItemModel();
+  mdl->setName(AIM_MODELDATA_TRAINERMODE);
+
+  for (int i = 0; i < TRAINER_MODE_COUNT; i++) {
+    mdl->appendToItemList(trainerModeToString(i), i, isTrainerModeAvailable(generalSettings, firmware, i));
+  }
+
+  mdl->loadItemList();
+  return mdl;
+}
diff --git a/companion/src/firmwares/modeldata.h b/companion/src/firmwares/modeldata.h
index f834a0779..1a3854714 100644
--- a/companion/src/firmwares/modeldata.h
+++ b/companion/src/firmwares/modeldata.h
@@ -39,6 +39,9 @@
 
 class GeneralSettings;
 class RadioDataConversionState;
+class AbstractStaticItemModel;
+
+constexpr char AIM_MODELDATA_TRAINERMODE[]  {"modeldata.trainermode"};
 
 #define CHAR_FOR_NAMES " ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-."
 #define CHAR_FOR_NAMES_REGEX "[ A-Za-z0-9_.-,]*"
@@ -96,14 +99,15 @@ typedef char TopbarData[216+1];
 #endif
 
 enum TrainerMode {
-  TRAINER_MODE_MASTER_TRAINER_JACK,
-  TRAINER_MODE_SLAVE,
+  TRAINER_MODE_MASTER_JACK,
+  TRAINER_MODE_SLAVE_JACK,
   TRAINER_MODE_MASTER_SBUS_EXTERNAL_MODULE,
   TRAINER_MODE_MASTER_CPPM_EXTERNAL_MODULE,
   TRAINER_MODE_MASTER_BATTERY_COMPARTMENT,
   TRAINER_MODE_MASTER_BLUETOOTH,
   TRAINER_MODE_SLAVE_BLUETOOTH,
-  TRAINER_MODE_MULTI
+  TRAINER_MODE_MULTI,
+  TRAINER_MODE_COUNT
 };
 
 #define INPUT_NAME_LEN 4
@@ -274,6 +278,11 @@ class ModelData {
     void limitsMove(const int index, const int offset);
     void limitsSet(const int index, const QByteArray & data);
 
+    QString trainerModeToString() const;
+    static QString trainerModeToString(const int value);
+    static bool isTrainerModeAvailable(const GeneralSettings & generalSettings, const Firmware * firmware, const int value);
+    static AbstractStaticItemModel * trainerModeItemModel(const GeneralSettings & generalSettings, const Firmware * firmware);
+
   protected:
     void removeGlobalVar(int & var);
 
diff --git a/companion/src/firmwares/moduledata.h b/companion/src/firmwares/moduledata.h
index 8acec18b0..04e936758 100644
--- a/companion/src/firmwares/moduledata.h
+++ b/companion/src/firmwares/moduledata.h
@@ -146,14 +146,6 @@ enum MultiModuleRFProtocols {
   MODULE_SUBTYPE_MULTI_LAST = MODULE_SUBTYPE_MULTI_E016HV2
 };
 
-enum TrainerProtocol {
-  TRAINER_MASTER_JACK,
-  TRAINER_SLAVE_JACK,
-  TRAINER_MASTER_SBUS_MODULE,
-  TRAINER_MASTER_CPPM_MODULE,
-  TRAINER_MASTER_SBUS_BATT_COMPARTMENT
-};
-
 enum ModuleSubtypeR9M {
   MODULE_SUBTYPE_R9M_FCC,
   MODULE_SUBTYPE_R9M_EU,
diff --git a/companion/src/firmwares/opentx/opentxeeprom.cpp b/companion/src/firmwares/opentx/opentxeeprom.cpp
index b82e76795..e43a4014e 100644
--- a/companion/src/firmwares/opentx/opentxeeprom.cpp
+++ b/companion/src/firmwares/opentx/opentxeeprom.cpp
@@ -2556,6 +2556,15 @@ void OpenTxModelData::beforeExport()
     }
     modelData.switchWarningStates = newSwitchWarningStates;
   }
+
+  //  TODO remove when enum not radio specific requires eeprom change and conversion
+  if (modelData.trainerMode > TRAINER_MODE_SLAVE_JACK) {
+    if (!IS_TARANIS(board)) {
+      modelData.trainerMode -= 2;
+      if (!IS_RADIOMASTER_TX16S(board))
+        modelData.trainerMode -= 1;
+    }
+  }
 }
 
 void OpenTxModelData::afterImport()
@@ -2577,6 +2586,15 @@ void OpenTxModelData::afterImport()
   if (version <= 218 && IS_HORUS_X10(board) && modelData.thrTraceSrc > 3) {
     modelData.thrTraceSrc += 2;
   }
+
+  //  TODO remove when enum not radio specific requires eeprom change and conversion
+  if (modelData.trainerMode > TRAINER_MODE_SLAVE_JACK) {
+    if (!IS_TARANIS(board)) {
+      modelData.trainerMode += 2;
+      if (!IS_RADIOMASTER_TX16S(board))
+        modelData.trainerMode += 1;
+    }
+  }
 }
 
 OpenTxGeneralData::OpenTxGeneralData(GeneralSettings & generalData, Board::Type board, unsigned int version, unsigned int variant):
diff --git a/companion/src/modeledit/setup.cpp b/companion/src/modeledit/setup.cpp
index de6609591..0eec2a206 100644
--- a/companion/src/modeledit/setup.cpp
+++ b/companion/src/modeledit/setup.cpp
@@ -32,6 +32,7 @@
 
 constexpr char FIM_TIMERSWITCH[] {"Timer Switch"};
 constexpr char FIM_THRSOURCE[]   {"Throttle Source"};
+constexpr char FIM_TRAINERMODE[] {"Trainer Mode"};
 
 TimerPanel::TimerPanel(QWidget * parent, ModelData & model, TimerData & timer, GeneralSettings & generalSettings, Firmware * firmware,
                        QWidget * prevFocus, FilteredItemModelFactory * panelFilteredModels, CompoundItemModelFactory * panelItemModels):
@@ -186,7 +187,8 @@ void TimerPanel::onCountdownBeepChanged(int index)
 
 quint8 ModulePanel::failsafesValueDisplayType = ModulePanel::FAILSAFE_DISPLAY_PERCENT;
 
-ModulePanel::ModulePanel(QWidget * parent, ModelData & model, ModuleData & module, GeneralSettings & generalSettings, Firmware * firmware, int moduleIdx):
+ModulePanel::ModulePanel(QWidget * parent, ModelData & model, ModuleData & module, GeneralSettings & generalSettings, Firmware * firmware, int moduleIdx,
+                         FilteredItemModelFactory * panelFilteredItemModels):
   ModelPanel(parent, model, generalSettings, firmware),
   module(module),
   moduleIdx(moduleIdx),
@@ -198,30 +200,17 @@ ModulePanel::ModulePanel(QWidget * parent, ModelData & model, ModuleData & modul
 
   ui->label_module->setText(ModuleData::indexToString(moduleIdx, firmware));
   if (moduleIdx < 0) {
-    if (!IS_TARANIS(firmware->getBoard()) || IS_ACCESS_RADIO(firmware->getBoard(), Firmware::getCurrentVariant()->getId())) {
-      ui->trainerMode->setItemData(TRAINER_MODE_MASTER_CPPM_EXTERNAL_MODULE, 0, Qt::UserRole - 1);
-      ui->trainerMode->setItemData(TRAINER_MODE_MASTER_SBUS_EXTERNAL_MODULE, 0, Qt::UserRole - 1);
-      ui->trainerMode->setItemData(TRAINER_MODE_MASTER_BATTERY_COMPARTMENT, 0, Qt::UserRole - 1);
-    }
-    else if (generalSettings.auxSerialMode != UART_MODE_SBUS_TRAINER) {
-      ui->trainerMode->setItemData(TRAINER_MODE_MASTER_BATTERY_COMPARTMENT, 0, Qt::UserRole - 1);
-    }
-
-    if (generalSettings.bluetoothMode != 2) {
-      ui->trainerMode->setItemData(TRAINER_MODE_MASTER_BLUETOOTH, 0, Qt::UserRole - 1);
-      ui->trainerMode->setItemData(TRAINER_MODE_SLAVE_BLUETOOTH, 0, Qt::UserRole - 1);
-    }
-
-    if (!IS_FAMILY_T16(firmware->getBoard())) {
-      ui->trainerMode->setItemData(TRAINER_MODE_MULTI, 0, Qt::UserRole - 1);
-    }
-
-    ui->trainerMode->setCurrentIndex(model.trainerMode);
+    ui->formLayout_col1->setSpacing(0);
     if (!IS_HORUS_OR_TARANIS(firmware->getBoard())) {
       ui->label_trainerMode->hide();
       ui->trainerMode->hide();
     }
-    ui->formLayout_col1->setSpacing(0);
+    else {
+      if (panelFilteredItemModels)
+        ui->trainerMode->setModel(panelFilteredItemModels->getItemModel(FIM_TRAINERMODE));
+      ui->trainerMode->setField(model.trainerMode);
+      connect(ui->trainerMode, SIGNAL(currentDataChanged(int)), this, SLOT(update()));
+    }
   }
   else {
     ui->label_trainerMode->hide();
@@ -455,11 +444,11 @@ void ModulePanel::update()
     }
   }
   else if (IS_HORUS_OR_TARANIS(board)) {
-    if (model->trainerMode == TRAINER_SLAVE_JACK) {
-      mask |= MASK_PPM_FIELDS | MASK_CHANNELS_RANGE | MASK_CHANNELS_COUNT;
+    if (model->trainerMode == TRAINER_MODE_SLAVE_JACK) {
+      mask |= MASK_PPM_FIELDS | MASK_SBUSPPM_FIELDS | MASK_CHANNELS_RANGE | MASK_CHANNELS_COUNT;
     }
   }
-  else if (model->trainerMode != TRAINER_MASTER_JACK) {
+  else if (model->trainerMode != TRAINER_MODE_MASTER_JACK) {
     mask |= MASK_PPM_FIELDS | MASK_CHANNELS_RANGE | MASK_CHANNELS_COUNT;
   }
 
@@ -651,15 +640,6 @@ void ModulePanel::update()
   ui->rxFreq->setVisible((mask & MASK_RX_FREQ));
 }
 
-void ModulePanel::on_trainerMode_currentIndexChanged(int index)
-{
-  if (!lock && model->trainerMode != (unsigned)index) {
-    model->trainerMode = index;
-    update();
-    emit modified();
-  }
-}
-
 void ModulePanel::onProtocolChanged(int index)
 {
   if (!lock && module.protocol != ui->protocol->itemData(index).toUInt()) {
@@ -1010,6 +990,7 @@ SetupPanel::SetupPanel(QWidget * parent, ModelData & model, GeneralSettings & ge
   panelItemModels->registerItemModel(TimerData::countdownBeepItemModel());
   panelItemModels->registerItemModel(TimerData::countdownStartItemModel());
   panelItemModels->registerItemModel(TimerData::persistentItemModel());
+  panelFilteredModels->registerItemModel(new FilteredItemModel(ModelData::trainerModeItemModel(generalSettings, firmware)), FIM_TRAINERMODE);
 
   Board::Type board = firmware->getBoard();
 
@@ -1249,7 +1230,7 @@ SetupPanel::SetupPanel(QWidget * parent, ModelData & model, GeneralSettings & ge
   }
 
   if (firmware->getCapability(ModelTrainerEnable)) {
-    modules[CPN_MAX_MODULES] = new ModulePanel(this, model, model.moduleData[CPN_MAX_MODULES], generalSettings, firmware, -1);
+    modules[CPN_MAX_MODULES] = new ModulePanel(this, model, model.moduleData[CPN_MAX_MODULES], generalSettings, firmware, -1, panelFilteredModels);
     ui->modulesLayout->addWidget(modules[CPN_MAX_MODULES]);
     connect(modules[CPN_MAX_MODULES], &ModulePanel::modified, this, &SetupPanel::modified);
   }
diff --git a/companion/src/modeledit/setup.h b/companion/src/modeledit/setup.h
index 955f2189b..d2c5391ac 100644
--- a/companion/src/modeledit/setup.h
+++ b/companion/src/modeledit/setup.h
@@ -66,7 +66,8 @@ class ModulePanel : public ModelPanel
   Q_OBJECT
 
   public:
-    ModulePanel(QWidget * parent, ModelData & model, ModuleData & module, GeneralSettings & generalSettings, Firmware * firmware, int moduleIdx);
+    ModulePanel(QWidget * parent, ModelData & model, ModuleData & module, GeneralSettings & generalSettings, Firmware * firmware, int moduleIdx,
+                FilteredItemModelFactory * panelFilteredItemModels = nullptr);
     virtual ~ModulePanel();
     virtual void update();
 
@@ -81,7 +82,6 @@ class ModulePanel : public ModelPanel
 
   private slots:
     void setupFailsafes();
-    void on_trainerMode_currentIndexChanged(int index);
     void onProtocolChanged(int index);
     void on_ppmDelay_editingFinished();
     void on_channelsCount_editingFinished();
diff --git a/companion/src/modeledit/setup_module.ui b/companion/src/modeledit/setup_module.ui
index 652975acd..f78bd2772 100644
--- a/companion/src/modeledit/setup_module.ui
+++ b/companion/src/modeledit/setup_module.ui
@@ -1019,7 +1019,7 @@
          </widget>
         </item>
         <item row="6" column="1">
-         <widget class="QComboBox" name="trainerMode">
+         <widget class="AutoComboBox" name="trainerMode">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
             <horstretch>0</horstretch>
@@ -1035,46 +1035,6 @@
           <property name="sizeAdjustPolicy">
            <enum>QComboBox::AdjustToContents</enum>
           </property>
-          <item>
-           <property name="text">
-            <string>Master/Jack</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Slave/Jack</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Master/SBUS Module</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Master/CPPM Module</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Master/SBUS in battery compartment</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Master/Bluetooth</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Slave/Bluetooth</string>
-           </property>
-          </item>
-          <item>
-           <property name="text">
-            <string>Master/Multi</string>
-           </property>
-          </item>
          </widget>
         </item>
         <item row="7" column="1">
diff --git a/companion/src/modelprinter.cpp b/companion/src/modelprinter.cpp
index 1d7df4f93..25bee2498 100644
--- a/companion/src/modelprinter.cpp
+++ b/companion/src/modelprinter.cpp
@@ -190,9 +190,9 @@ QString ModelPrinter::printModule(int idx)
   QString result;
   ModuleData module = model.moduleData[(idx<0 ? CPN_MAX_MODULES : idx)];
   if (idx < 0) {
-    str << printLabelValue(tr("Mode"), printTrainerMode());
+    str << printLabelValue(tr("Mode"), model.trainerModeToString());
     if (IS_HORUS_OR_TARANIS(firmware->getBoard())) {
-      if (model.trainerMode == TRAINER_SLAVE_JACK) {
+      if (model.trainerMode == TRAINER_MODE_SLAVE_JACK) {
         str << printLabelValue(tr("Channels"), QString("%1-%2").arg(module.channelsStart + 1).arg(module.channelsStart + module.channelsCount));
         str << printLabelValue(tr("Frame length"), QString("%1ms").arg(printPPMFrameLength(module.ppm.frameLength)));
         str << printLabelValue(tr("PPM delay"), QString("%1us").arg(module.ppm.delay));
@@ -239,31 +239,6 @@ QString ModelPrinter::printModule(int idx)
   return result;
 }
 
-QString ModelPrinter::printTrainerMode()
-{
-  QString result;
-  switch (model.trainerMode) {
-    case TRAINER_MASTER_JACK:
-      result = tr("Master/Jack");
-      break;
-    case TRAINER_SLAVE_JACK:
-      result = tr("Slave/Jack");
-      break;
-    case TRAINER_MASTER_SBUS_MODULE:
-      result = tr("Master/SBUS Module");
-      break;
-    case TRAINER_MASTER_CPPM_MODULE:
-      result = tr("Master/CPPM Module");
-      break;
-    case TRAINER_MASTER_SBUS_BATT_COMPARTMENT:
-      result = tr("Master/SBUS in battery compartment");
-      break;
-    default:
-      result = CPN_STR_UNKNOWN_ITEM;
-  }
-  return result;
-}
-
 QString ModelPrinter::printHeliSwashType ()
 {
   switch (model.swashRingData.type) {
diff --git a/companion/src/modelprinter.h b/companion/src/modelprinter.h
index 8be56bd64..6cc63a85f 100644
--- a/companion/src/modelprinter.h
+++ b/companion/src/modelprinter.h
@@ -61,7 +61,6 @@ class ModelPrinter: public QObject
     QString printFlightModes(unsigned int flightModes);
     QString printInputFlightModes(unsigned int flightModes);
     QString printModule(int idx);
-    QString printTrainerMode();
     QString printCenterBeep();
     QString printHeliSwashType();
     QString printTrim(int flightModeIndex, int stickIndex);
diff --git a/radio/src/dataconstants.h b/radio/src/dataconstants.h
index 1c5fdc1ea..66ab681b5 100644
--- a/radio/src/dataconstants.h
+++ b/radio/src/dataconstants.h
@@ -186,6 +186,9 @@ enum ModuleIndex {
   EXTERNAL_MODULE,
   SPORT_MODULE,
 };
+
+//  TODO: simplify at an eeprom change to a single master list and use ui filters. Simplies radio conversions and both radio and companion code
+//        Companion opentxeeprom.cpp will require after import and before export manipulation removed
 enum TrainerMode {
   TRAINER_MODE_MASTER_TRAINER_JACK,
   TRAINER_MODE_SLAVE,
@@ -208,6 +211,7 @@ enum TrainerMode {
   };
 #endif
 
+//  TODO: simplify at an eeprom change to a single master list and use ui filters
 #define TRAINER_MODE_MIN()               TRAINER_MODE_MASTER_TRAINER_JACK
 
 #if !defined(HARDWARE_EXTERNAL_MODULE)
diff --git a/radio/src/datastructs.h b/radio/src/datastructs.h
index 765245b3e..992066203 100644
--- a/radio/src/datastructs.h
+++ b/radio/src/datastructs.h
@@ -390,7 +390,7 @@ PACK(struct TelemetrySensor {
  */
 
 PACK(struct TrainerModuleData {
-  uint8_t mode:3;
+  uint8_t mode:3;         //  TODO: simplify value at an eeprom change refer compile driven enum handling in dataconstants.h
   uint8_t spare1:5;
   uint8_t channelsStart;
   int8_t  channelsCount; // 0=8 channels
@@ -970,4 +970,4 @@ static inline void check_struct()
 
 #undef CHKSIZE
 }
-#endif /* BACKUP */ 
+#endif /* BACKUP */