diff --git a/src/app/valentina/xml/vpattern.cpp b/src/app/valentina/xml/vpattern.cpp
index 595fbae13..a7ddee41c 100644
--- a/src/app/valentina/xml/vpattern.cpp
+++ b/src/app/valentina/xml/vpattern.cpp
@@ -624,6 +624,7 @@ void VPattern::ParseDetailElement(const QDomElement &domElement, const Document
         detail.SetForbidFlipping(GetParametrBool(domElement, VToolSeamAllowance::AttrForbidFlipping,
                                            QString().setNum(qApp->ValentinaSettings()->GetForbidWorkpieceFlipping())));
         detail.SetInLayout(GetParametrBool(domElement, AttrInLayout, trueStr));
+        detail.SetUnited(GetParametrBool(domElement, VToolSeamAllowance::AttrUnited, falseStr));
 
         const QStringList tags = QStringList() << VToolSeamAllowance::TagNodes
                                                << TagData
diff --git a/src/libs/ifc/schema/pattern/v0.4.0.xsd b/src/libs/ifc/schema/pattern/v0.4.0.xsd
index 0562a84f1..fb24ee3e9 100644
--- a/src/libs/ifc/schema/pattern/v0.4.0.xsd
+++ b/src/libs/ifc/schema/pattern/v0.4.0.xsd
@@ -420,6 +420,7 @@
                                                                            <xs:attribute name="forbidFlipping" type="xs:boolean"></xs:attribute>
                                                                            <xs:attribute name="width" type="xs:double"></xs:attribute>
                                                                            <xs:attribute name="seamAllowance" type="xs:boolean"></xs:attribute>
+                                                                           <xs:attribute name="united" type="xs:boolean"></xs:attribute>
                                                                      </xs:complexType>
                                                                </xs:element>
                                                          </xs:sequence>
diff --git a/src/libs/vpatterndb/vpiece.cpp b/src/libs/vpatterndb/vpiece.cpp
index 1d0fafc0d..b876ff8c6 100644
--- a/src/libs/vpatterndb/vpiece.cpp
+++ b/src/libs/vpatterndb/vpiece.cpp
@@ -219,6 +219,18 @@ void VPiece::SetInLayout(bool inLayout)
     d->m_inLayout = inLayout;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+bool VPiece::IsUnited() const
+{
+    return d->m_united;
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VPiece::SetUnited(bool united)
+{
+    d->m_united = united;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief Missing find missing nodes in detail. When we deleted object in detail and return this detail need
diff --git a/src/libs/vpatterndb/vpiece.h b/src/libs/vpatterndb/vpiece.h
index 243332d8d..1c17e3f2d 100644
--- a/src/libs/vpatterndb/vpiece.h
+++ b/src/libs/vpatterndb/vpiece.h
@@ -72,6 +72,9 @@ public:
     bool IsInLayout() const;
     void SetInLayout(bool inLayout);
 
+    bool IsUnited() const;
+    void SetUnited(bool united);
+
     QVector<VPieceNode> Missing(const VPiece &det) const;
 
     int indexOfNode(const quint32 &id) const;
diff --git a/src/libs/vpatterndb/vpiece_p.h b/src/libs/vpatterndb/vpiece_p.h
index ebb7acd6c..0511d4ae5 100644
--- a/src/libs/vpatterndb/vpiece_p.h
+++ b/src/libs/vpatterndb/vpiece_p.h
@@ -46,7 +46,8 @@ public:
         : m_path(),
           m_mx(0),
           m_my(0),
-          m_inLayout(true)
+          m_inLayout(true),
+          m_united(false)
     {}
 
     VPieceData(const VPieceData &detail)
@@ -54,7 +55,8 @@ public:
           m_path(detail.m_path),
           m_mx(detail.m_mx),
           m_my(detail.m_my),
-          m_inLayout(detail.m_inLayout)
+          m_inLayout(detail.m_inLayout),
+          m_united(detail.m_united)
     {}
 
     ~VPieceData();
@@ -66,6 +68,7 @@ public:
     qreal m_my;
 
     bool m_inLayout;
+    bool m_united;
 
 private:
     VPieceData &operator=(const VPieceData &) Q_DECL_EQ_DELETE;
diff --git a/src/libs/vtools/tools/vtoolseamallowance.cpp b/src/libs/vtools/tools/vtoolseamallowance.cpp
index cfdc2892d..aa6c46758 100644
--- a/src/libs/vtools/tools/vtoolseamallowance.cpp
+++ b/src/libs/vtools/tools/vtoolseamallowance.cpp
@@ -67,6 +67,7 @@ const QString VToolSeamAllowance::AttrSeamAllowance  = QStringLiteral("seamAllow
 const QString VToolSeamAllowance::AttrWidth          = QStringLiteral("width");
 const QString VToolSeamAllowance::AttrSABefore       = QStringLiteral("before");
 const QString VToolSeamAllowance::AttrSAAfter        = QStringLiteral("after");
+const QString VToolSeamAllowance::AttrUnited         = QStringLiteral("united");
 
 const QString VToolSeamAllowance::NodeArc        = QStringLiteral("NodeArc");
 const QString VToolSeamAllowance::NodePoint      = QStringLiteral("NodePoint");
@@ -278,6 +279,7 @@ void VToolSeamAllowance::AddAttributes(VAbstractPattern *doc, QDomElement &domEl
     doc->SetAttribute(domElement, AttrForbidFlipping, piece.IsForbidFlipping());
     doc->SetAttribute(domElement, AttrSeamAllowance, piece.IsSeamAllowance());
     doc->SetAttribute(domElement, AttrWidth, piece.GetSAWidth());
+    doc->SetAttribute(domElement, AttrUnited, piece.IsUnited());
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/libs/vtools/tools/vtoolseamallowance.h b/src/libs/vtools/tools/vtoolseamallowance.h
index 8b1a76764..04605a66e 100644
--- a/src/libs/vtools/tools/vtoolseamallowance.h
+++ b/src/libs/vtools/tools/vtoolseamallowance.h
@@ -64,6 +64,7 @@ public:
     static const QString AttrWidth;
     static const QString AttrSABefore;
     static const QString AttrSAAfter;
+    static const QString AttrUnited;
 
     static const QString NodeArc;
     static const QString NodePoint;