diff --git a/EgtInterface.vb b/EgtInterface.vb
index 7c03c56..a44d13c 100644
--- a/EgtInterface.vb
+++ b/EgtInterface.vb
@@ -10383,6 +10383,34 @@ Public Function EgtZoom(nZoom As ZM, Optional bRedraw As Boolean = True) As Bool
    End If
 End Function
 
+<DllImport(EgtIntDll32, CharSet:=CharSet.Unicode, EntryPoint:="EgtZoomRadius"), SuppressUnmanagedCodeSecurity()>
+Private Function EgtZoomRadius_32(dRad As Double, bRedraw As Boolean) As Boolean
+End Function
+<DllImport(EgtIntDll64, CharSet:=CharSet.Unicode, EntryPoint:="EgtZoomRadius"), SuppressUnmanagedCodeSecurity()>
+Private Function EgtZoomRadius_64(dRad As Double, bRedraw As Boolean) As Boolean
+End Function
+Public Function EgtZoomRadius(dRad As Double, Optional bRedraw As Boolean = True) As Boolean
+   If IntPtr.Size = 4 Then
+      Return EgtZoomRadius_32(dRad, bRedraw)
+   Else
+      Return EgtZoomRadius_64(dRad, bRedraw)
+   End If
+End Function
+
+<DllImport(EgtIntDll32, CharSet:=CharSet.Unicode, EntryPoint:="EgtZoomObject"), SuppressUnmanagedCodeSecurity()>
+Private Function EgtZoomObject_32(nId As Integer, bRedraw As Boolean) As Boolean
+End Function
+<DllImport(EgtIntDll64, CharSet:=CharSet.Unicode, EntryPoint:="EgtZoomObject"), SuppressUnmanagedCodeSecurity()>
+Private Function EgtZoomObject_64(nId As Integer, bRedraw As Boolean) As Boolean
+End Function
+Public Function EgtZoomObject(nId As Integer, Optional bRedraw As Boolean = True) As Boolean
+   If IntPtr.Size = 4 Then
+      Return EgtZoomObject_32(nId, bRedraw)
+   Else
+      Return EgtZoomObject_64(nId, bRedraw)
+   End If
+End Function
+
 <DllImport(EgtIntDll32, CharSet:=CharSet.Unicode, EntryPoint:="EgtZoomOnPoint"), SuppressUnmanagedCodeSecurity()>
 Private Function EgtZoomOnPoint_32(nWinX As Integer, nWinY As Integer, dCoeff As Double, bRedraw As Boolean) As Boolean
 End Function
@@ -12147,6 +12175,22 @@ Public Enum MCH_CHISEL_WS As Integer
    LEFT = 1
    RIGHT = 2
 End Enum
+'Costanti per Mortasatura (mortising)
+   'Lato di lavoro
+Public Enum MCH_MORTISE_WS As Integer
+   LEFT = 1
+   RIGHT = 2
+End Enum
+   'Tipo di lavorazione faccia
+Public Enum MCH_MORTISE_FU As Integer
+   NONE = 0
+   PARAL_DOWN = 1
+   PARAL_TOP = 2
+   PARAL_FRONT = 3
+   PARAL_BACK = 4
+   PARAL_LEFT = 5
+   PARAL_RIGHT = 6
+End Enum
 'Costanti : posizione per preview utensile in lavorazione
 Public Enum MCH_PTM As Integer
    CURR = 0
diff --git a/My Project/AssemblyInfo.vb b/My Project/AssemblyInfo.vb
index 225da5b..d7e936e 100644
--- a/My Project/AssemblyInfo.vb	
+++ b/My Project/AssemblyInfo.vb	
@@ -46,5 +46,5 @@ Imports System.Runtime.InteropServices
 ' utilizzando l'asterisco (*) come descritto di seguito:
 ' <Assembly: AssemblyVersion("1.0.*")> 
 
-<Assembly: AssemblyVersion("1.9.2.1")> 
-<Assembly: AssemblyFileVersion("1.9.2.1")> 
+<Assembly: AssemblyVersion("1.9.3.1")> 
+<Assembly: AssemblyFileVersion("1.9.3.1")> 
diff --git a/Scene.vb b/Scene.vb
index 5785110..3a12e3f 100644
--- a/Scene.vb
+++ b/Scene.vb
@@ -273,7 +273,7 @@ Public Class Scene
             m_PrevPoint = e.Location
          ' se stato SELPATH, SELPATHAUTO oppure SEL + Control
          ElseIf m_nStatus = ST.SELPATH Or m_nStatus = ST.SELPATHAUTO Or
-                (m_nStatus = ST.SEL And (ModifierKeys And Keys.Control) = Keys.Control) Then
+                (m_nStatus = ST.SEL And (ModifierKeys And Keys.Control) = Keys.Control And (ModifierKeys And Keys.Alt) = Keys.None) Then
             EgtSetObjFilterForSelWin(False, m_bCurveForSel, False, False, False)   ' abilito solo le curve
             Dim nId As Integer = ChooseOneSelectedObj(e.Location, m_nStatus)
             If nId <> GDB_ID.NULL Then