diff --git a/EInAPI.h b/EInAPI.h
index 4acf2d7..ecbdc2f 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -44,6 +44,7 @@ EIN_EXPORT void __stdcall EgtEnableCommandLogger( void) ;
 EIN_EXPORT void __stdcall EgtDisableCommandLogger( void) ;
 EIN_EXPORT BOOL __stdcall EgtGetVersionInfo( wchar_t*& wsVer) ;
 EIN_EXPORT BOOL __stdcall EgtGetKeyInfo( wchar_t*& wsKey) ;
+EIN_EXPORT BOOL __stdcall EgtGetKeyLevel( int nProd, int nVer, int nLev, int* pnKLev) ;
 EIN_EXPORT BOOL __stdcall EgtGetKeyOptions( int nProd, int nVer, int nLev, unsigned int* pnOpt2) ;
 EIN_EXPORT BOOL __stdcall EgtGetOsInfo( wchar_t*& wsOs) ;
 EIN_EXPORT BOOL __stdcall EgtGetCpuInfo( wchar_t*& wsCpu) ;
diff --git a/EMkMachiningConst.h b/EMkMachiningConst.h
index 5d79427..46ed736 100644
--- a/EMkMachiningConst.h
+++ b/EMkMachiningConst.h
@@ -26,12 +26,20 @@ const int MGP_STR    = 0x8000 ;
 enum MgpType { MGP_NONE =                         0,
                MGP_COMP3A =         ( MGP_BOOL + 0),
                MGP_COMP5A =         ( MGP_BOOL + 1),
+               MGP_SPLITARCS =      ( MGP_INT +  0),
                MGP_SAFEZ =          ( MGP_DOU +  0),
                MGP_EXTRALONCUTREG = ( MGP_DOU +  1),
                MGP_EXTRARONDRIREG = ( MGP_DOU +  2),
                MGP_HOLEDIAMTOLER  = ( MGP_DOU +  3),
                MGP_EXTSAWARCMINRAD =( MGP_DOU +  4)} ;
 
+//----------------------------------------------------------------------------
+// Costanti per tipologia di split arcs
+enum { SPLAR_NEVER = 0,
+       SPLAR_GEN_PLANE = 1,
+       SPLAR_NO_XY_PLANE = 2,
+       SPLAR_ALWAYS = 3} ;
+
 //----------------------------------------------------------------------------
 // Tipologie di lavorazioni  (derivano da tipologie di operazioni)
 enum MachiningType {
diff --git a/EXeExecutor.h b/EXeExecutor.h
index d8a9b78..8bfb61d 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -46,6 +46,7 @@ EXE_EXPORT bool ExeEnableCommandLogger( void) ;
 EXE_EXPORT bool ExeDisableCommandLogger( void) ;
 EXE_EXPORT bool ExeGetVersionInfo( std::string& sVer, const char* szNewLine) ;
 EXE_EXPORT bool ExeGetKeyInfo( std::string& sKey) ;
+EXE_EXPORT bool ExeGetKeyLevel( int nProd, int nVer, int nLev, int& nKLev) ;
 EXE_EXPORT bool ExeGetKeyOptions( int nProd, int nVer, int nLev, unsigned int& nOpt2) ;
 EXE_EXPORT bool ExeGetOsInfo( std::string& sOs) ;
 EXE_EXPORT bool ExeGetCpuInfo( std::string& sCpu) ;