Placing the grid origin is possible with GAL.

pcbnew/tools/common_actions.cpp

@@ -223,6 +223,10 @@ TOOL_ACTION COMMON_ACTIONS::gridPrev( "pcbnew.gridPrev",
         AS_GLOBAL, MD_CTRL + int( '`' ),
         "", "" );
 
+TOOL_ACTION COMMON_ACTIONS::gridSetOrigin( "pcbnew.gridSetOrigin",
+        AS_GLOBAL, 0,
+        "", "" );
+
 
 // Track & via size control
 TOOL_ACTION COMMON_ACTIONS::trackWidthInc( "pcbnew.trackWidthInc",
@@ -241,7 +245,9 @@ TOOL_ACTION COMMON_ACTIONS::viaSizeDec( "pcbnew.viaSizeDec",
         AS_GLOBAL, '\\',
         "", "" );
 
-TOOL_ACTION COMMON_ACTIONS::trackViaSizeChanged( "pcbnew.trackViaSizeChanged", AS_GLOBAL, 0, "", "" );
+TOOL_ACTION COMMON_ACTIONS::trackViaSizeChanged( "pcbnew.trackViaSizeChanged",
+        AS_GLOBAL, 0,
+        "", "" );
 
 // Miscellaneous
 TOOL_ACTION COMMON_ACTIONS::resetCoords( "pcbnew.resetCoords",
@@ -290,6 +296,9 @@ std::string COMMON_ACTIONS::TranslateLegacyId( int aId )
 
     case ID_PCB_MIRE_BUTT:
         return COMMON_ACTIONS::placeTarget.GetName();
+
+    case ID_PCB_PLACE_GRID_COORD_BUTT:
+        return COMMON_ACTIONS::gridSetOrigin.GetName();
     }
 
     return "";

pcbnew/tools/common_actions.h

@@ -130,6 +130,7 @@ public:
     static TOOL_ACTION gridFast2;
     static TOOL_ACTION gridNext;
     static TOOL_ACTION gridPrev;
+    static TOOL_ACTION gridSetOrigin;
 
     // Track & via size control
     static TOOL_ACTION trackWidthInc;

pcbnew/tools/pcbnew_control.cpp

@@ -412,6 +412,39 @@ int PCBNEW_CONTROL::GridPrev( TOOL_EVENT& aEvent )
 }
 
 
+int PCBNEW_CONTROL::GridSetOrigin( TOOL_EVENT& aEvent )
+{
+    Activate();
+    getEditFrame<PCB_EDIT_FRAME>()->SetToolID( ID_PCB_PLACE_GRID_COORD_BUTT, wxCURSOR_PENCIL,
+                                               _( "Adjust grid origin" ) );
+
+    KIGFX::VIEW_CONTROLS* controls = getViewControls();
+    controls->ShowCursor( true );
+    controls->SetSnapping( true );
+    controls->SetAutoPan( true );
+
+    while( OPT_TOOL_EVENT evt = Wait() )
+    {
+        if( evt->IsClick( BUT_LEFT ) )
+        {
+            getView()->GetGAL()->SetGridOrigin( controls->GetCursorPosition() );
+            getView()->MarkDirty();
+        }
+
+        else if( evt->IsCancel() )
+            break;
+    }
+
+    controls->SetAutoPan( false );
+    controls->SetSnapping( false );
+    controls->ShowCursor( false );
+    setTransitions();
+    m_frame->SetToolID( ID_NO_TOOL_SELECTED, wxCURSOR_DEFAULT, wxEmptyString );
+
+    return 0;
+}
+
+
 // Track & via size control
 int PCBNEW_CONTROL::TrackWidthInc( TOOL_EVENT& aEvent )
 {
@@ -574,6 +607,7 @@ void PCBNEW_CONTROL::setTransitions()
     Go( &PCBNEW_CONTROL::GridFast2,          COMMON_ACTIONS::gridFast2.MakeEvent() );
     Go( &PCBNEW_CONTROL::GridNext,           COMMON_ACTIONS::gridNext.MakeEvent() );
     Go( &PCBNEW_CONTROL::GridPrev,           COMMON_ACTIONS::gridPrev.MakeEvent() );
+    Go( &PCBNEW_CONTROL::GridSetOrigin,      COMMON_ACTIONS::gridSetOrigin.MakeEvent() );
 
     // Track & via size control
     Go( &PCBNEW_CONTROL::TrackWidthInc,      COMMON_ACTIONS::trackWidthInc.MakeEvent() );

pcbnew/tools/pcbnew_control.h

@@ -79,6 +79,7 @@ public:
     int GridFast2( TOOL_EVENT& aEvent );
     int GridNext( TOOL_EVENT& aEvent );
     int GridPrev( TOOL_EVENT& aEvent );
+    int GridSetOrigin( TOOL_EVENT& aEvent );
 
     // Track & via size control
     int TrackWidthInc( TOOL_EVENT& aEvent );

pcbnew/tools/point_editor.cpp

@@ -212,7 +212,7 @@ int POINT_EDITOR::OnSelectionChange( TOOL_EVENT& aEvent )
         PCB_EDIT_FRAME* editFrame = getEditFrame<PCB_EDIT_FRAME>();
         EDA_ITEM* item = selection.items.GetPickedItem( 0 );
 
-        m_editPoints = EDIT_POINTS_FACTORY::Make( item, m_toolMgr->GetView()->GetGAL() );
+        m_editPoints = EDIT_POINTS_FACTORY::Make( item, getView()->GetGAL() );
         if( !m_editPoints )
         {
             setTransitions();