diff --git a/companion/src/eeprominterface.h b/companion/src/eeprominterface.h
index 41e1cf51f..e5666ac46 100644
--- a/companion/src/eeprominterface.h
+++ b/companion/src/eeprominterface.h
@@ -755,6 +755,22 @@ enum TelemetryCurrentSources {
   TELEMETRY_CURRENT_SOURCE_FAS
 };
 
+enum UartModes {
+  UART_MODE_NONE,
+  UART_MODE_TELEMETRY_MIRROR,
+  UART_MODE_TELEMETRY,
+  UART_MODE_SBUS_TRAINER,
+  UART_MODE_DEBUG
+};
+
+enum TrainerMode {
+  TRAINER_MODE_MASTER_TRAINER_JACK,
+  TRAINER_MODE_SLAVE,
+  TRAINER_MODE_MASTER_SBUS_EXTERNAL_MODULE,
+  TRAINER_MODE_MASTER_CPPM_EXTERNAL_MODULE,
+  TRAINER_MODE_MASTER_BATTERY_COMPARTMENT,
+};
+
 class FrSkyData {
   public:
     FrSkyData() { clear(); }
diff --git a/companion/src/modeledit/setup.cpp b/companion/src/modeledit/setup.cpp
index 87ce14850..335e8bec3 100644
--- a/companion/src/modeledit/setup.cpp
+++ b/companion/src/modeledit/setup.cpp
@@ -137,6 +137,9 @@ ModulePanel::ModulePanel(QWidget *parent, ModelData & model, ModuleData & module
   QString label;
   if (moduleIdx < 0) {
     label = tr("Trainer Port");
+    if (generalSettings.hw_uartMode != UART_MODE_SBUS_TRAINER) {
+      ui->trainerMode->setItemData(TRAINER_MODE_MASTER_BATTERY_COMPARTMENT, 0, Qt::UserRole - 1);
+    }
     ui->trainerMode->setCurrentIndex(model.trainerMode);
     if (!IS_TARANIS(firmware->getBoard())) {
       ui->label_trainerMode->hide();