diff --git a/src/commands/CommandContext.cpp b/src/commands/CommandContext.cpp
index 93098b3f5..9a9261af0 100644
--- a/src/commands/CommandContext.cpp
+++ b/src/commands/CommandContext.cpp
@@ -97,3 +97,42 @@ AudacityApp * CommandContext::GetApp() const
 AudacityProject *CommandContext::GetProject() const
 {  return GetActiveProject();}
 
+void CommandContext::StartArray() const
+{
+   if( pOutput )
+      pOutput->StartArray();
+}
+void CommandContext::EndArray() const
+{
+   if( pOutput )
+      pOutput->EndArray();
+}
+void CommandContext::StartStruct() const
+{
+   if( pOutput )
+      pOutput->StartStruct();
+}
+void CommandContext::EndStruct() const
+{
+   if( pOutput )
+      pOutput->EndStruct();
+}
+void CommandContext::AddItem(const wxString &value , const wxString &name ) const
+{
+   if( pOutput )
+      pOutput->AddItem( value, name );
+}
+void CommandContext::AddBool(const bool value      , const wxString &name ) const
+{
+   if( pOutput )
+      pOutput->AddItem( value, name );
+}
+void CommandContext::AddItem(const double value    , const wxString &name ) const
+{
+   if( pOutput )
+      pOutput->AddItem( value, name );
+}
+
+
+
+
diff --git a/src/commands/CommandContext.h b/src/commands/CommandContext.h
index 03c45f4e9..155c52f4c 100644
--- a/src/commands/CommandContext.h
+++ b/src/commands/CommandContext.h
@@ -38,6 +38,16 @@ public:
    virtual void Status( const wxString & WXUNUSED(message) ) const;
    virtual void Error(  const wxString & WXUNUSED(message) ) const;
    virtual void Progress( double WXUNUSED(d) ) const;
+
+   // Output formatting...
+   void StartArray() const;
+   void EndArray() const;
+   void StartStruct() const;
+   void EndStruct() const;
+   void AddItem(const wxString &value , const wxString &name="" ) const;
+   void AddBool(const bool value      , const wxString &name="" ) const;
+   void AddItem(const double value    , const wxString &name="" ) const;
+
    AudacityProject &project;
    std::unique_ptr<CommandOutputTarget> pOutput;
    const wxEvent *pEvt;
diff --git a/src/commands/CommandTargets.cpp b/src/commands/CommandTargets.cpp
index 1e17e5395..753462e24 100644
--- a/src/commands/CommandTargets.cpp
+++ b/src/commands/CommandTargets.cpp
@@ -23,6 +23,46 @@ dialog, if necessary.
 #include "../ShuttleGui.h"
 #include "../Project.h"
 
+void CommandMessageTarget::StartArray()
+{
+   wxString Padding;
+   Padding.Pad( mCounts.GetCount() *2 -2);
+   Update( wxString::Format( "%s%s[ ", ( mCounts.Last() > 0 ) ? ",\n" : "\n", Padding ));
+   mCounts.Last() += 1;
+   mCounts.push_back( 0 );
+}
+
+void CommandMessageTarget::EndArray(){
+   if( mCounts.GetCount() > 1 ){
+      mCounts.pop_back();
+   }
+   Update( " ]" );
+}
+void CommandMessageTarget::StartStruct(){
+   wxString Padding;
+   Padding.Pad( mCounts.GetCount() *2 -2);
+   Update( wxString::Format( "%s%s{ ", ( mCounts.Last() > 0 ) ? ",\n" : "\n", Padding ));
+   mCounts.Last() += 1;
+   mCounts.push_back( 0 );
+}
+void CommandMessageTarget::EndStruct(){
+   if( mCounts.GetCount() > 1 ){
+      mCounts.pop_back();
+   }
+   Update( " }" );
+}
+void CommandMessageTarget::AddItem(const wxString &value, const wxString &name){
+   Update( wxString::Format( "%s%s%s\"%s\"", (mCounts.Last()>0)?", ":"", name, !name.IsEmpty()?":":"",value));
+   mCounts.Last() += 1;
+}
+void CommandMessageTarget::AddItem(const bool value,      const wxString &name){
+   Update( wxString::Format( "%s%s%s%s", (mCounts.Last()>0)?", ":"", name, !name.IsEmpty()?":":"",value?"True":"False"));
+   mCounts.Last() += 1;
+}
+void CommandMessageTarget::AddItem(const double value,    const wxString &name){
+   Update( wxString::Format( "%s%s%s%g", (mCounts.Last()>0)?", ":"", name, !name.IsEmpty()?":":"",value));
+   mCounts.Last() += 1;
+}
 
 
 /// Dialog for long messages.
@@ -114,7 +154,7 @@ void LongMessageDialog::AcceptText( const wxString & Text )
       pDlg->Init();
       pDlg->Show();
    }
-   pDlg->mText->SetValue( pDlg->mText->GetValue( ) + "\n" + Text );
+   pDlg->mText->SetValue( pDlg->mText->GetValue( ) + Text );
 }
 
 
diff --git a/src/commands/CommandTargets.h b/src/commands/CommandTargets.h
index 423c58598..c7e93d127 100644
--- a/src/commands/CommandTargets.h
+++ b/src/commands/CommandTargets.h
@@ -38,6 +38,25 @@ public:
    virtual void Update(double completed) = 0;
 };
 
+/// Interface for objects that can receive (string) messages from a command
+class CommandMessageTarget /* not final */
+{
+public:
+   CommandMessageTarget() {mCounts.push_back(0);}
+   virtual ~CommandMessageTarget() {}
+   virtual void Update(const wxString &message) = 0;
+   virtual void StartArray();
+   virtual void EndArray();
+   virtual void StartStruct();
+   virtual void EndStruct();
+   virtual void AddItem(const wxString &value , const wxString &name="" );
+   virtual void AddItem(const bool value      , const wxString &name="" );
+   virtual void AddItem(const double value    , const wxString &name="" );
+   wxArrayInt mCounts;
+};
+
+
+
 /// Used to ignore a command's progress updates
 class NullProgressTarget final : public CommandProgressTarget
 {
@@ -62,13 +81,6 @@ public:
    }
 };
 
-/// Interface for objects that can receive (string) messages from a command
-class CommandMessageTarget /* not final */
-{
-public:
-   virtual ~CommandMessageTarget() {}
-   virtual void Update(const wxString &message) = 0;
-};
 
 ///
 class ProgressToMessageTarget final : public CommandProgressTarget
@@ -198,6 +210,7 @@ public:
    ~CommandOutputTarget()
    {
    }
+   // Lots of forwarding...
    void Progress(double completed)
    {
       if (mProgressTarget)
@@ -213,6 +226,44 @@ public:
       if (mErrorTarget)
          mErrorTarget->Update(message);
    }
+   void StartArray()
+   {
+      if (mStatusTarget)
+         mStatusTarget->StartArray();
+   }
+   void EndArray()
+   {
+      if (mStatusTarget)
+         mStatusTarget->EndArray();
+   }
+   void StartStruct()
+   {
+      if (mStatusTarget)
+         mStatusTarget->StartStruct();
+   }
+   void EndStruct()
+   {
+      if (mStatusTarget)
+         mStatusTarget->EndStruct();
+   }
+   void AddItem(const wxString &value , const wxString &name="" )
+   {
+      if (mStatusTarget)
+         mStatusTarget->AddItem( value, name );
+   }
+   void AddItem(const bool value      , const wxString &name="" )
+   {
+      if (mStatusTarget)
+         mStatusTarget->AddItem( value, name );
+   }
+   void AddItem(const double value    , const wxString &name="" )
+   {
+      if (mStatusTarget)
+         mStatusTarget->AddItem( value, name );
+   }
+
+
+
 };
 
 class InteractiveOutputTarget : public CommandOutputTarget
diff --git a/src/commands/GetInfoCommand.cpp b/src/commands/GetInfoCommand.cpp
index e0ec0ed8b..0afed25f6 100644
--- a/src/commands/GetInfoCommand.cpp
+++ b/src/commands/GetInfoCommand.cpp
@@ -255,8 +255,14 @@ void GetInfoCommand::ExploreAdornments( const CommandContext &context,
    wxSize s = pWin->GetWindowBorderSize();
    wxRect R( 2,32, R1.GetWidth() - s.GetWidth() * 2 -16, 22 );
 
-   context.Status( wxString::Format("  [ %2i, %3i, %3i, %3i, %3i, \"%s\" ],", 
-      depth, R.GetLeft(), R.GetTop(), R.GetRight(), R.GetBottom(), "MenuBar" )); 
+   context.StartArray();
+   context.AddItem( depth );
+   context.AddItem( R.GetLeft() );
+   context.AddItem( R.GetTop() );
+   context.AddItem( R.GetRight() );
+   context.AddItem( R.GetBottom() );
+   context.AddItem( "MenuBar" ); 
+   context.EndArray();
 }
 
 void GetInfoCommand::ExploreTrackPanel( const CommandContext &context,
@@ -330,8 +336,14 @@ void GetInfoCommand::ExploreTrackPanel( const CommandContext &context,
          R.height -= (kTopMargin + kBottomMargin);
          R.SetPosition( R.GetPosition() + P );
 
-         context.Status( wxString::Format("  [ %2i, %3i, %3i, %3i, %3i, \"%s\" ],", 
-            depth, R.GetLeft(), R.GetTop(), R.GetRight(), R.GetBottom(), "VRuler" )); 
+         context.StartArray();
+         context.AddItem( depth );
+         context.AddItem( R.GetLeft() );
+         context.AddItem( R.GetTop() );
+         context.AddItem( R.GetRight() );
+         context.AddItem( R.GetBottom() );
+         context.AddItem( "VRuler" ); 
+         context.EndArray();
       }
    }
 }
@@ -366,8 +378,16 @@ void GetInfoCommand::ExploreWindows( const CommandContext &context,
          continue;
       if( Name.IsEmpty() )
          Name = wxString("*") + item->GetToolTipText();
-      context.Status( wxString::Format("  [ %2i, %3i, %3i, %3i, %3i, \"%s\" ],", 
-         depth, R.GetLeft(), R.GetTop(), R.GetRight(), R.GetBottom(), Name )); 
+
+      context.StartArray();
+      context.AddItem( depth );
+      context.AddItem( R.GetLeft() );
+      context.AddItem( R.GetTop() );
+      context.AddItem( R.GetRight() );
+      context.AddItem( R.GetBottom() );
+      context.AddItem( Name ); 
+      context.EndArray();
+
       ExploreWindows( context, P, item, item->GetId(), depth+1 );
    }
 }
@@ -375,20 +395,27 @@ void GetInfoCommand::ExploreWindows( const CommandContext &context,
 
 bool GetInfoCommand::SendBoxesAsJson(const CommandContext &context)
 {
-   context.Status("Boxes");
+   //context.Status("Boxes");
    wxWindow * pWin = context.GetProject();
 
-   context.Status( "[" );
+   context.StartArray();
    wxRect R = pWin->GetScreenRect();
 
    //R.SetPosition( wxPoint(0,0) );
    
    //wxString Name = pWin->GetName();
-   context.Status( wxString::Format("  [ %2i, %3i, %3i, %3i, %3i, \"%s\" ],", 
-         0, R.GetLeft(), R.GetTop(), R.GetRight(), R.GetBottom(), "Audacity Window" )); 
+   context.StartArray();
+   context.AddItem( 0 );
+   context.AddItem( R.GetLeft() );
+   context.AddItem( R.GetTop() );
+   context.AddItem( R.GetRight() );
+   context.AddItem( R.GetBottom() );
+   context.AddItem( "Audacity Window" ); 
+   context.EndArray( );
+
    ExploreAdornments( context, pWin->GetPosition()+wxSize( 6,-1), pWin, pWin->GetId(), 1 );
    ExploreWindows( context, pWin->GetPosition()+wxSize( 6,-1), pWin, pWin->GetId(), 1 );
-   context.Status( "]" );
+   context.EndArray( );
    return true;
 }