diff --git a/EInAPI.h b/EInAPI.h
index 38c24f8..bccb95e 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -249,6 +249,8 @@ EIN_EXPORT int  __stdcall EgtGetFirstLayer( int nPartId, BOOL bOnlyVisible) ;
 EIN_EXPORT int  __stdcall EgtGetNextLayer( int nId, BOOL bOnlyVisible) ;
 EIN_EXPORT int  __stdcall EgtGetLastLayer( int nPartId, BOOL bOnlyVisible) ;
 EIN_EXPORT int  __stdcall EgtGetPrevLayer( int nId, BOOL bOnlyVisible) ;
+EIN_EXPORT int  __stdcall EgtGetFirstGhostPart( void) ;
+EIN_EXPORT int  __stdcall EgtGetNextGhostPart( int nId) ;
 EIN_EXPORT BOOL __stdcall EgtEraseEmptyParts( void) ;
 EIN_EXPORT BOOL __stdcall EgtSelectPartObjs( int nPartId) ;
 EIN_EXPORT BOOL __stdcall EgtDeselectPartObjs( int nPartId) ;
diff --git a/EMkMachMgr.h b/EMkMachMgr.h
index e2e74da..af4edb7 100644
--- a/EMkMachMgr.h
+++ b/EMkMachMgr.h
@@ -63,6 +63,7 @@ class __declspec( novtable) IMachMgr
       virtual int  GetRawPartCount( void) const = 0 ;
       virtual int  GetFirstRawPart( void) const = 0 ;
       virtual int  GetNextRawPart( int nId) const = 0 ;
+      virtual bool IsRawPart( int nId) const = 0 ;
       virtual int  AddRawPart( const Point3d& ptOrig, double dLen, double dWidth, double dHeight, Color cCol) = 0 ;
       virtual int  AddRawPartWithPart( int nPartId, int nCrvSrfId, double dOverMat, Color cCol) = 0 ;
       virtual bool ModifyRawPart( int nRawId, const Point3d& ptOrig, double dLen, double dWidth, double dHeight, Color cCol) = 0 ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 9f9cb7e..7ee36cf 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -280,6 +280,8 @@ EXE_EXPORT int  ExeGetFirstLayer( int nPartId, bool bOnlyVisible) ;
 EXE_EXPORT int  ExeGetNextLayer( int nId, bool bOnlyVisible) ;
 EXE_EXPORT int  ExeGetLastLayer( int nPartId, bool bOnlyVisible) ;
 EXE_EXPORT int  ExeGetPrevLayer( int nId, bool bOnlyVisible) ;
+EXE_EXPORT int  ExeGetFirstGhostPart( void) ;
+EXE_EXPORT int  ExeGetNextGhostPart( int nId) ;
 EXE_EXPORT bool ExeEraseEmptyParts( void) ;
 EXE_EXPORT bool ExeSelectPartObjs( int nPartId) ;
 EXE_EXPORT bool ExeDeselectPartObjs( int nPartId) ;
@@ -601,6 +603,7 @@ EXE_EXPORT int  ExeGetPhaseCount( void) ;
 EXE_EXPORT int  ExeGetRawPartCount( void) ;
 EXE_EXPORT int  ExeGetFirstRawPart( void) ;
 EXE_EXPORT int  ExeGetNextRawPart( int nRawId) ;
+EXE_EXPORT bool ExeIsRawPart( int nRawId) ;
 EXE_EXPORT int  ExeAddRawPart( Point3d ptOrig, double dLength, double dWidth, double dHeight, Color cCol) ;
 EXE_EXPORT int  ExeAddRawPartWithPart( int nPartId, int nCrvId, double dOverMat, Color cCol) ;
 EXE_EXPORT bool ExeModifyRawPart( int nRawId, Point3d ptOrig, double dLength, double dWidth, double dHeight, Color cCol) ;