diff --git a/Mk2_3phase_RFdatalog_temp/dualtariff.h b/Mk2_3phase_RFdatalog_temp/dualtariff.h
index c7e35a5..f6fa53f 100644
--- a/Mk2_3phase_RFdatalog_temp/dualtariff.h
+++ b/Mk2_3phase_RFdatalog_temp/dualtariff.h
@@ -14,11 +14,6 @@
 
 #include "config.h"
 
-/*!
- *  @defgroup DualTariff Dual tariff feature
- *  Functions used for the dual tariff feature
- */
-
 /**
  * @brief Template class for Load-Overriding
  * @details The array is initialized at compile time so it can be read-only and
@@ -26,6 +21,8 @@
  *
  * @tparam N # of loads
  * @tparam D
+ * 
+ * @ingroup DualTariff
  */
 template< uint8_t N, uint8_t OffPeakDuration = 8 >
 class _rg_OffsetForce
@@ -70,6 +67,7 @@ inline constexpr auto rg_OffsetForce{ _rg_OffsetForce< NO_OF_DUMPLOADS, ul_OFF_P
 /**
  * @brief Print the settings for off-peak period
  *
+ * @ingroup DualTariff
  */
 inline void printDualTariffConfiguration()
 {
diff --git a/Mk2_3phase_RFdatalog_temp/utils_temp.h b/Mk2_3phase_RFdatalog_temp/utils_temp.h
index 76887b3..c4328d6 100644
--- a/Mk2_3phase_RFdatalog_temp/utils_temp.h
+++ b/Mk2_3phase_RFdatalog_temp/utils_temp.h
@@ -32,6 +32,8 @@ inline constexpr bool TEMP_SENSOR_PRESENT{ false }; /**< set it to 'true' if tem
  * @brief This class implements the temperature sensing feature
  * 
  * @tparam N Number of sensors, automatically deduced
+ * 
+ * @ingroup TemperatureSensing
  */
 template< uint8_t N >
 class TemperatureSensing