diff --git a/EMkMachiningGeoConst.h b/EMkMachiningGeoConst.h
index 0f6abea..9cdb29e 100644
--- a/EMkMachiningGeoConst.h
+++ b/EMkMachiningGeoConst.h
@@ -27,7 +27,7 @@ static std::string KEY_NUM = "NUM" ;
 // Chiave per stato di aggiornamento di lavorazione
 static std::string KEY_STAT = "STAT" ;
 // Chiave per elenco identificativi non lavorati
-static std::string KEY_SKIPS = "SKIPS" ; 
+static std::string KEY_SKIPS = "SKIPS" ;
 // Sottogruppi delle lavorazioni
 static std::string MCH_AUX = "AUX" ;
 static std::string MCH_AUXVIEW = "AVIEW" ;
@@ -39,6 +39,7 @@ static std::string MCH_CL = "CL" ;
 static std::string MCH_DBL = "DBL" ;
 static std::string MCH_HOME = "HOME" ;
 static std::string MCH_PATH = "P" ;
+static std::string MCH_FRAME = "FRAME" ;
 // Nomi di entità CL speciali
 static std::string MCH_CL_CLIMB = "CLIMB" ;
 static std::string MCH_CL_RISE = "RISE" ;