diff --git a/EGrScene.h b/EGrScene.h
index 991336e..1db0e8c 100644
--- a/EGrScene.h
+++ b/EGrScene.h
@@ -81,6 +81,8 @@ class IEGrScene
       virtual bool GetShowTriaAdvanced( void) const = 0 ;
       virtual void SetShowZmap( int nMode) = 0 ;
       virtual int  GetShowZmap( void) const = 0 ;
+      virtual void SetShowText( int nMode) = 0 ;
+      virtual int  GetShowText( void) const = 0 ;
      // Geometry
       virtual bool SetExtension( const BBox3d& b3Ext) = 0 ;
       virtual bool UpdateExtension( void) = 0 ;
@@ -187,3 +189,6 @@ enum ZmapShowMode { ZSM_SURF = 1,
                     ZSM_LINES = 2,
                     ZSM_NORMALS = 4,
                     ZSM_COLORS = 8} ;
+//------------------------ Costanti per tipo visualizz. Text -----------------
+enum TextShowMode { TXT_OUTLINE = 1,
+                    TXT_FILL = 2} ;
diff --git a/EMkMachiningGeoConst.h b/EMkMachiningGeoConst.h
index c833593..30dfed2 100644
--- a/EMkMachiningGeoConst.h
+++ b/EMkMachiningGeoConst.h
@@ -28,6 +28,7 @@ static std::string KEY_NUM = "NUM" ;
 static std::string KEY_STAT = "STAT" ;
 // Sottogruppi delle lavorazioni
 static std::string MCH_AUX = "AUX" ;
+static std::string MCH_TABS = "TABS" ;
 static std::string MCH_PV = "PV" ;
 static std::string MCH_ST = "ST" ;
 static std::string MCH_CL = "CL" ;