diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 162d9fd75..b5826c9f1 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -314,9 +314,6 @@ void ObjectList::create_objects_ctrl()
      */
     SetMinSize(wxSize(-1, 3000));
 
-    m_sizer = new wxBoxSizer(wxVERTICAL);
-    m_sizer->Add(this, 1, wxGROW);
-
     m_objects_model = new ObjectDataViewModel;
     AssociateModel(m_objects_model);
     m_objects_model->SetAssociatedControl(this);
diff --git a/src/slic3r/GUI/GUI_ObjectList.hpp b/src/slic3r/GUI/GUI_ObjectList.hpp
index 2e25c9b9b..0e6aa96e8 100644
--- a/src/slic3r/GUI/GUI_ObjectList.hpp
+++ b/src/slic3r/GUI/GUI_ObjectList.hpp
@@ -163,8 +163,6 @@ private:
 
     } m_dragged_data;
 
-    wxBoxSizer          *m_sizer {nullptr};
-
     ObjectDataViewModel         *m_objects_model{ nullptr };
     ModelConfig                 *m_config {nullptr};
     std::vector<ModelObject*>   *m_objects{ nullptr };
@@ -308,7 +306,6 @@ public:
     bool                can_merge_to_single_object() const;
 
     wxPoint             get_mouse_position_in_control() const { return wxGetMousePosition() - this->GetScreenPosition(); }
-    wxBoxSizer*         get_sizer() {return  m_sizer;}
     int                 get_selected_obj_idx() const;
     ModelConfig&        get_item_config(const wxDataViewItem& item) const;
 
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 279353df6..f008b048e 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -103,7 +103,6 @@
 #include "Widgets/ProgressDialog.hpp"
 #include "BBLStatusBar.hpp"
 #include "BitmapCache.hpp"
-#include "AuxiliaryDialog.hpp"
 #include "ParamsDialog.hpp"
 #include "Widgets/Label.hpp"
 #include "Widgets/RoundedRectangle.hpp"
@@ -304,7 +303,6 @@ struct Sidebar::priv
     wxPanel* m_panel_printer_content = nullptr;
 
     ObjectList          *m_object_list{ nullptr };
-    AuxiliaryDialog     *m_auxiliary_dialog{ nullptr };
     ObjectSettings      *object_settings{ nullptr };
 
     wxButton *btn_export_gcode;
@@ -536,6 +534,7 @@ Sidebar::Sidebar(Plater *parent)
         scrolled_sizer->AddSpacer(FromDIP(20));
     }
 
+    {
     // add filament title
     p->m_panel_filament_title = new StaticBox(p->scrolled, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL | wxBORDER_NONE);
     p->m_panel_filament_title->SetBackgroundColor(title_bg);
@@ -703,7 +702,9 @@ Sidebar::Sidebar(Plater *parent)
     p->m_panel_filament_content->Layout();
     scrolled_sizer->Add(p->m_panel_filament_content, 0, wxTOP | wxEXPAND, FromDIP(5));
     scrolled_sizer->AddSpacer(FromDIP(20));
+    }
 
+    {
     //add project title
     auto params_panel = ((MainFrame*)parent->GetParent())->m_param_panel;
     if (params_panel) {
@@ -727,8 +728,6 @@ Sidebar::Sidebar(Plater *parent)
     scrolled_sizer->Add(p->sizer_params, 2, wxEXPAND | wxLEFT, 0);
     p->m_object_list->Hide();
 
-    p->m_auxiliary_dialog = new AuxiliaryDialog(this);
-
     // Frequently Object Settings
     p->object_settings = new ObjectSettings(p->scrolled);
 #if !NEW_OBJECT_SETTING
@@ -740,6 +739,7 @@ Sidebar::Sidebar(Plater *parent)
         scrolled_sizer->Add(params_panel, 3, wxEXPAND);
     }
 #endif
+    }
 
     auto *sizer = new wxBoxSizer(wxVERTICAL);
     sizer->Add(p->scrolled, 1, wxEXPAND);
@@ -1192,11 +1192,6 @@ ObjectList* Sidebar::obj_list()
     return p->m_object_list;
 }
 
-AuxiliaryList* Sidebar::aux_list()
-{
-    return p->m_auxiliary_dialog->aux_list();
-}
-
 ObjectSettings* Sidebar::obj_settings()
 {
     return p->object_settings;
@@ -1336,12 +1331,6 @@ bool Sidebar::show_object_list(bool show) const
     return true;
 }
 
-bool Sidebar::show_auxiliary_dialog() const
-{
-    p->m_auxiliary_dialog->Reparent(wxGetApp().mainframe);
-    return p->m_auxiliary_dialog->ShowModal();
-}
-
 std::vector<PlaterPresetComboBox*>& Sidebar::combos_filament()
 {
     return p->combos_filament;
@@ -3299,8 +3288,6 @@ std::vector<size_t> Plater::priv::load_model_objects(const ModelObjectPtrs& mode
 // BBS
 void Plater::priv::load_auxiliary_files()
 {
-    // AuxiliaryList* aux_list = dynamic_cast<AuxiliaryList*>(sidebar->aux_list());
-    // aux_list->reload(auxiliary_path);
     std::string auxiliary_path = encode_path(q->model().get_auxiliary_file_temp_path().c_str());
     wxGetApp().mainframe->m_auxiliary->Reload(auxiliary_path);
 }
diff --git a/src/slic3r/GUI/Plater.hpp b/src/slic3r/GUI/Plater.hpp
index a8f0b812c..5fb45dfa3 100644
--- a/src/slic3r/GUI/Plater.hpp
+++ b/src/slic3r/GUI/Plater.hpp
@@ -19,7 +19,6 @@
 #include "Search.hpp"
 #include "PartPlate.hpp"
 #include "GUI_App.hpp"
-#include "GUI_AuxiliaryList.hpp"
 #include "Jobs/PrintJob.hpp"
 #include "libslic3r/Model.hpp"
 
@@ -126,8 +125,6 @@ public:
     wxPanel* print_panel();
     wxPanel* filament_panel();
 
-    AuxiliaryList*          aux_list();
-
     ConfigOptionsGroup*     og_freq_chng_params(const bool is_fff);
     wxButton*               get_wiping_dialog_button();
 
@@ -147,7 +144,6 @@ public:
     void                    update_searcher();
     void                    update_ui_from_settings();
 	bool                    show_object_list(bool show) const;
-    bool                    show_auxiliary_dialog() const;
 
 #ifdef _MSW_DARK_MODE
     void                    show_mode_sizer(bool show);