diff --git a/applications/utilities/mesh/manipulation/topoSet/topoSetDict b/applications/utilities/mesh/manipulation/topoSet/topoSetDict
index 1f58d59dde..562c006ab1 100644
--- a/applications/utilities/mesh/manipulation/topoSet/topoSetDict
+++ b/applications/utilities/mesh/manipulation/topoSet/topoSetDict
@@ -95,11 +95,12 @@ FoamFile
 //        type hex;           // hex/wedge/prism/pyr/tet/tetWedge/splitHex
 //    }
 //
-//    // Cells with cell centre within box
+//    // Cells with cell centre within box ('box') or multiple boxes ('boxes')
 //    source boxToCell;
 //    sourceInfo
 //    {
 //       box   (0 0 0) (1 1 1);
+//       //boxes   ((0 0 0) (1 1 1) (10 10 10)(11 11 11));
 //    }
 //
 //    // Cells with cell centre within box
@@ -223,11 +224,12 @@ FoamFile
 //        name ".*Zone1";     // Name of faceZone, regular expressions allowed
 //    }
 //
-//    // Faces with face centre within box
+//    // Faces with face centre within box ('box') or multiple boxes ('boxes')
 //    source boxToFace;
 //    sourceInfo
 //    {
 //        box  (0 0 0) (1 1 1);
+//       //boxes   ((0 0 0) (1 1 1) (10 10 10)(11 11 11));
 //    }
 //
 //    // Faces with normal to within certain angle aligned with vector.
@@ -295,11 +297,12 @@ FoamFile
 //       points ((0 0 0) (1 1 1));
 //    }
 //
-//    // Points with coordinate within box
+//    // Points with coordinate within box ('box') or multiple boxes ('boxes')
 //    source boxToPoint;
 //    sourceInfo
 //    {
 //       box   (0 0 0) (1 1 1);
+//       //boxes   ((0 0 0) (1 1 1) (10 10 10)(11 11 11));
 //    }
 //
 //    // Select based on surface
diff --git a/src/meshTools/sets/cellSources/boxToCell/boxToCell.C b/src/meshTools/sets/cellSources/boxToCell/boxToCell.C
index 58f62f93d7..28bec358bc 100644
--- a/src/meshTools/sets/cellSources/boxToCell/boxToCell.C
+++ b/src/meshTools/sets/cellSources/boxToCell/boxToCell.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -58,9 +58,13 @@ void Foam::boxToCell::combine(topoSet& set, const bool add) const
 
     forAll(ctrs, cellI)
     {
-        if (bb_.contains(ctrs[cellI]))
+        forAll(bbs_, i)
         {
-            addOrDelete(set, cellI, add);
+            if (bbs_[i].contains(ctrs[cellI]))
+            {
+                addOrDelete(set, cellI, add);
+                break;
+            }
         }
     }
 }
@@ -72,11 +76,11 @@ void Foam::boxToCell::combine(topoSet& set, const bool add) const
 Foam::boxToCell::boxToCell
 (
     const polyMesh& mesh,
-    const treeBoundBox& bb
+    const treeBoundBoxList& bbs
 )
 :
     topoSetSource(mesh),
-    bb_(bb)
+    bbs_(bbs)
 {}
 
 
@@ -88,7 +92,12 @@ Foam::boxToCell::boxToCell
 )
 :
     topoSetSource(mesh),
-    bb_(dict.lookup("box"))
+    bbs_
+    (
+        dict.found("box")
+      ? treeBoundBoxList(1, treeBoundBox(dict.lookup("box")))
+      : dict.lookup("boxes")
+    )
 {}
 
 
@@ -100,7 +109,7 @@ Foam::boxToCell::boxToCell
 )
 :
     topoSetSource(mesh),
-    bb_(checkIs(is))
+    bbs_(1, treeBoundBox(checkIs(is)))
 {}
 
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
@@ -119,13 +128,13 @@ void Foam::boxToCell::applyToSet
 {
     if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
     {
-        Info<< "    Adding cells with center within box " << bb_ << endl;
+        Info<< "    Adding cells with center within boxes " << bbs_ << endl;
 
         combine(set, true);
     }
     else if (action == topoSetSource::DELETE)
     {
-        Info<< "    Removing cells with center within box " << bb_ << endl;
+        Info<< "    Removing cells with center within boxes " << bbs_ << endl;
 
         combine(set, false);
     }
diff --git a/src/meshTools/sets/cellSources/boxToCell/boxToCell.H b/src/meshTools/sets/cellSources/boxToCell/boxToCell.H
index ee1d0deb12..488ceb934f 100644
--- a/src/meshTools/sets/cellSources/boxToCell/boxToCell.H
+++ b/src/meshTools/sets/cellSources/boxToCell/boxToCell.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::boxToCell
 
 Description
-    A topoSetSource to select cells based on cell centres inside box.
+    A topoSetSource to select cells based on cell centres inside box(es).
 
 SourceFiles
     boxToCell.C
@@ -36,7 +36,7 @@ SourceFiles
 #define boxToCell_H
 
 #include "topoSetSource.H"
-#include "treeBoundBox.H"
+#include "treeBoundBoxList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -59,7 +59,7 @@ class boxToCell
 
 
         //- bounding box.
-        treeBoundBox bb_;
+        treeBoundBoxList bbs_;
 
 
     // Private Member Functions
@@ -78,7 +78,7 @@ public:
         boxToCell
         (
             const polyMesh& mesh,
-            const treeBoundBox& bb
+            const treeBoundBoxList& bbs
         );
 
         //- Construct from dictionary
diff --git a/src/meshTools/sets/faceSources/boxToFace/boxToFace.C b/src/meshTools/sets/faceSources/boxToFace/boxToFace.C
index f46c1dd0b2..698bb5c311 100644
--- a/src/meshTools/sets/faceSources/boxToFace/boxToFace.C
+++ b/src/meshTools/sets/faceSources/boxToFace/boxToFace.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -58,9 +58,13 @@ void Foam::boxToFace::combine(topoSet& set, const bool add) const
 
     forAll(ctrs, faceI)
     {
-        if (bb_.contains(ctrs[faceI]))
+        forAll(bbs_, i)
         {
-            addOrDelete(set, faceI, add);
+            if (bbs_[i].contains(ctrs[faceI]))
+            {
+                addOrDelete(set, faceI, add);
+                break;
+            }
         }
     }
 }
@@ -72,11 +76,11 @@ void Foam::boxToFace::combine(topoSet& set, const bool add) const
 Foam::boxToFace::boxToFace
 (
     const polyMesh& mesh,
-    const treeBoundBox& bb
+    const treeBoundBoxList& bbs
 )
 :
     topoSetSource(mesh),
-    bb_(bb)
+    bbs_(bbs)
 {}
 
 
@@ -88,7 +92,12 @@ Foam::boxToFace::boxToFace
 )
 :
     topoSetSource(mesh),
-    bb_(dict.lookup("box"))
+    bbs_
+    (
+        dict.found("box")
+      ? treeBoundBoxList(1, treeBoundBox(dict.lookup("box")))
+      : dict.lookup("boxes")
+    )
 {}
 
 
@@ -100,7 +109,7 @@ Foam::boxToFace::boxToFace
 )
 :
     topoSetSource(mesh),
-    bb_(checkIs(is))
+    bbs_(1, treeBoundBox(checkIs(is)))
 {}
 
 
@@ -120,13 +129,13 @@ void Foam::boxToFace::applyToSet
 {
     if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
     {
-        Info<< "    Adding faces with centre within box " << bb_ << endl;
+        Info<< "    Adding faces with centre within boxes " << bbs_ << endl;
 
         combine(set, true);
     }
     else if (action == topoSetSource::DELETE)
     {
-        Info<< "    Removing faces with centre within box " << bb_ << endl;
+        Info<< "    Removing faces with centre within boxes " << bbs_ << endl;
 
         combine(set, false);
     }
diff --git a/src/meshTools/sets/faceSources/boxToFace/boxToFace.H b/src/meshTools/sets/faceSources/boxToFace/boxToFace.H
index 16685861ea..056dbac118 100644
--- a/src/meshTools/sets/faceSources/boxToFace/boxToFace.H
+++ b/src/meshTools/sets/faceSources/boxToFace/boxToFace.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -36,7 +36,7 @@ SourceFiles
 #define boxToFace_H
 
 #include "topoSetSource.H"
-#include "treeBoundBox.H"
+#include "treeBoundBoxList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -58,7 +58,7 @@ class boxToFace
         static addToUsageTable usage_;
 
         //- bounding box.
-        treeBoundBox bb_;
+        treeBoundBoxList bbs_;
 
 
     // Private Member Functions
@@ -77,7 +77,7 @@ public:
         boxToFace
         (
             const polyMesh& mesh,
-            const treeBoundBox& bb
+            const treeBoundBoxList& bbs
         );
 
         //- Construct from dictionary
diff --git a/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.C b/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.C
index 56975ded6e..53bb9b41fe 100644
--- a/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.C
+++ b/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -58,9 +58,12 @@ void Foam::boxToPoint::combine(topoSet& set, const bool add) const
 
     forAll(pts, pointI)
     {
-        if (bb_.contains(pts[pointI]))
+        forAll(bbs_, i)
         {
-            addOrDelete(set, pointI, add);
+            if (bbs_[i].contains(pts[pointI]))
+            {
+                addOrDelete(set, pointI, add);
+            }
         }
     }
 }
@@ -72,11 +75,11 @@ void Foam::boxToPoint::combine(topoSet& set, const bool add) const
 Foam::boxToPoint::boxToPoint
 (
     const polyMesh& mesh,
-    const treeBoundBox& bb
+    const treeBoundBoxList& bbs
 )
 :
     topoSetSource(mesh),
-    bb_(bb)
+    bbs_(bbs)
 {}
 
 
@@ -88,7 +91,12 @@ Foam::boxToPoint::boxToPoint
 )
 :
     topoSetSource(mesh),
-    bb_(dict.lookup("box"))
+    bbs_
+    (
+        dict.found("box")
+      ? treeBoundBoxList(1, treeBoundBox(dict.lookup("box")))
+      : dict.lookup("boxes")
+    )
 {}
 
 
@@ -100,7 +108,7 @@ Foam::boxToPoint::boxToPoint
 )
 :
     topoSetSource(mesh),
-    bb_(checkIs(is))
+    bbs_(1, treeBoundBox(checkIs(is)))
 {}
 
 
@@ -120,14 +128,14 @@ void Foam::boxToPoint::applyToSet
 {
     if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
     {
-        Info<< "    Adding points that are within box " << bb_ << " ..."
+        Info<< "    Adding points that are within boxes " << bbs_ << " ..."
             << endl;
 
         combine(set, true);
     }
     else if (action == topoSetSource::DELETE)
     {
-        Info<< "    Removing points that are within box " << bb_ << " ..."
+        Info<< "    Removing points that are within boxes " << bbs_ << " ..."
             << endl;
 
         combine(set, false);
diff --git a/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.H b/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.H
index d40eb2e052..e5f5cfc559 100644
--- a/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.H
+++ b/src/meshTools/sets/pointSources/boxToPoint/boxToPoint.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -36,7 +36,7 @@ SourceFiles
 #define boxToPoint_H
 
 #include "topoSetSource.H"
-#include "treeBoundBox.H"
+#include "treeBoundBoxList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -58,7 +58,7 @@ class boxToPoint
         static addToUsageTable usage_;
 
         //- bounding box.
-        treeBoundBox bb_;
+        treeBoundBoxList bbs_;
 
 
     // Private Member Functions
@@ -77,7 +77,7 @@ public:
         boxToPoint
         (
             const polyMesh& mesh,
-            const treeBoundBox& bb
+            const treeBoundBoxList& bb
         );
 
         //- Construct from dictionary