Index: sources/main.h
===================================================================
diff -u -rec7f919fdb70ff29a8de627937e4ad7008e59c1c -ra04fd119778f0483cba5139a11e3c6bad7f2324a
--- sources/main.h	(.../main.h)	(revision ec7f919fdb70ff29a8de627937e4ad7008e59c1c)
+++ sources/main.h	(.../main.h)	(revision a04fd119778f0483cba5139a11e3c6bad7f2324a)
@@ -138,6 +138,10 @@
             }                                                           \
         }
 //--------------------------------------------------------------------------------//
+#define PROPERTY_POST_CONNECTION( vCLASS,     vVARIABLE         )       \
+    connect(this,                &vCLASS::vVARIABLE##Changed            \
+                ,                &vCLASS::vVARIABLE##_post  );
+
 #define PROPERTY_BASE(vTYPE , vVARIABLE , vDEFVALUE, vSIGNAL)           \
     /*! \brief   Qt Property declaration
         \details The Qt Property definition by Q_PROPERTY documentation.
@@ -156,6 +160,8 @@
         */\
         void vVARIABLE##vSIGNAL( const vTYPE & v##vVARIABLE );          \
     private:                                                            \
+        void vVARIABLE##_post  ( const vTYPE & v##vVARIABLE );          \
+    private:                                                            \
         vTYPE    _##vVARIABLE          = vDEFVALUE;                     \
         bool     _##vVARIABLE##Changed = false;                         \
     protected:                                                          \
@@ -259,7 +265,46 @@
             emit vVARIABLE##Notified( _##vVARIABLE );                   \
         }
 //--------------------------------------------------------------------------------//
+#define SETTINGS_BASE( vVARIABLE , vCATEGORY , vGROUP , vKEY)           \
+    private:                                                            \
+    /*! \brief   Settings identifier
+        \details identifies the settings by the given information
+        \param   vCategory - The category of the setting which includes on-level folder and the file name (without .conf extension) <folder/file name>
+        \param   vGroup    - The group setting key/value belongs to
+        \param   vKey      - The key of the setting
+     */\
+    bool is##vVARIABLE(const QString &vCategory ,                       \
+                       const QString &vGroup    ,                       \
+                       const QString &vKey                          ) { \
+        return  vCategory   == vVARIABLE##Category() &&                 \
+                vGroup      == vVARIABLE##Group   () &&                 \
+                vKey        == vVARIABLE##Key     ();                   \
+    }                                                                   \
+    /*! \brief   Settings property category getter
+        \details returns the category of the setting
+     */\
+    QString vVARIABLE##Category() {                                     \
+        return vCATEGORY;                                               \
+    }                                                                   \
+    /*! \brief   Settings property group getter
+        \details returns the group of the setting
+     */\
+    QString vVARIABLE##Group() {                                        \
+        return vGROUP;                                                  \
+    }                                                                   \
+    /*! \brief   Settings property key getter
+        \details returns the key of the setting
+     */\
+    QString vVARIABLE##Key() {                                          \
+        return vKEY;                                                    \
+    }
 //--------------------------------------------------------------------------------//
+#define SETTINGS(      vTYPE , vVARIABLE , vDEFVALUE , vCATEGORY , vGROUP , vKEY)       \
+        PROPERTY_BASE( vTYPE , vVARIABLE , vDEFVALUE , Changed                  )       \
+        PROPERTY_SLOT( vTYPE , vVARIABLE                                        )       \
+        SETTINGS_BASE(         vVARIABLE ,             vCATEGORY , vGROUP , vKEY)
+//--------------------------------------------------------------------------------//
+//--------------------------------------------------------------------------------//
 #define ACTION_VIEW_CONNECTION(vTYPE)                                   \
     connect(&_GuiController, SIGNAL(didActionReceive(const vTYPE &)),   \
                        this,   SLOT( onActionReceive(const vTYPE &)));