diff --git a/src/slic3r/GUI/BackgroundSlicingProcess.hpp b/src/slic3r/GUI/BackgroundSlicingProcess.hpp
index 1153adc01f..406caf3d87 100644
--- a/src/slic3r/GUI/BackgroundSlicingProcess.hpp
+++ b/src/slic3r/GUI/BackgroundSlicingProcess.hpp
@@ -92,6 +92,8 @@ public:
 	void set_thumbnail_cb(ThumbnailsGeneratorCallback cb) { m_thumbnail_cb = cb; }
 	void set_gcode_result(GCodeProcessorResult* result) { m_gcode_result = result; }
 
+	GCodeProcessorResult *get_gcode_result() { return m_gcode_result; }
+
 	// The following wxCommandEvent will be sent to the UI thread / Plater window, when the slicing is finished
 	// and the background processing will transition into G-code export.
 	// The wxCommandEvent is sent to the UI thread asynchronously without waiting for the event to be processed.
diff --git a/src/slic3r/GUI/BulkExportDialog.cpp b/src/slic3r/GUI/BulkExportDialog.cpp
index 452123fc6d..2e1b764246 100644
--- a/src/slic3r/GUI/BulkExportDialog.cpp
+++ b/src/slic3r/GUI/BulkExportDialog.cpp
@@ -20,24 +20,19 @@
 #include "format.hpp"
 #include "Tab.hpp"
 
-using Slic3r::GUI::format_wxstr;
+namespace fs = boost::filesystem;
 
 namespace Slic3r {
 namespace GUI {
 
 constexpr auto BORDER_W = 10;
 
-//-----------------------------------------------
-//          BulkExportDialog::Item
-//-----------------------------------------------
-
-
-void BulkExportDialog::Item::init_input_name_ctrl(wxBoxSizer* input_path_sizer, const std::string path)
+void BulkExportDialog::Item::init_input_name_ctrl(wxBoxSizer* input_path_sizer, const std::string &path)
 {
 #ifdef _WIN32
-    long style = wxBORDER_SIMPLE;
+    const long style = wxBORDER_SIMPLE;
 #else
-    long style = 0L;
+    const long style = 0L;
 #endif
     m_text_ctrl = new wxTextCtrl(m_parent, wxID_ANY, from_u8(path), wxDefaultPosition, wxSize(45 * wxGetApp().em_unit(), -1), style);
     wxGetApp().UpdateDarkUI(m_text_ctrl);
@@ -45,18 +40,24 @@ void BulkExportDialog::Item::init_input_name_ctrl(wxBoxSizer* input_path_sizer,
 
     input_path_sizer->Add(m_text_ctrl, 1, wxEXPAND, BORDER_W);
 }
-
-BulkExportDialog::Item::Item(wxWindow* parent, wxBoxSizer* sizer, PrintToExport& pte):
+BulkExportDialog::Item::Item(
+    wxWindow *parent,
+    wxBoxSizer *sizer,
+    const boost::filesystem::path &path,
+    Validator validator
+):
+    path(path),
     m_parent(parent),
-    m_print_to_export(&pte),
     m_valid_bmp(new wxStaticBitmap(m_parent, wxID_ANY, *get_bmp_bundle("tick_mark"))),
-    m_valid_label(new wxStaticText(m_parent, wxID_ANY, ""))
+    m_valid_label(new wxStaticText(m_parent, wxID_ANY, "")),
+    m_validator(std::move(validator)),
+    m_directory(path.parent_path())
 {
     m_valid_label->SetFont(wxGetApp().bold_font());
 
     wxBoxSizer* input_path_sizer = new wxBoxSizer(wxHORIZONTAL);
-    input_path_sizer->Add(m_valid_bmp,    0, wxALIGN_CENTER_VERTICAL | wxRIGHT, BORDER_W);
-    init_input_name_ctrl(input_path_sizer, pte.output_path.filename().string());
+    input_path_sizer->Add(m_valid_bmp, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, BORDER_W);
+    init_input_name_ctrl(input_path_sizer, path.filename().string());
 
     sizer->Add(input_path_sizer,0, wxEXPAND | wxTOP, BORDER_W);
     sizer->Add(m_valid_label,   0, wxEXPAND | wxLEFT,   3*BORDER_W);
@@ -64,82 +65,131 @@ BulkExportDialog::Item::Item(wxWindow* parent, wxBoxSizer* sizer, PrintToExport&
     update();
 }
 
-void BulkExportDialog::Item::update()
-{
-    m_path = into_u8(m_text_ctrl->GetValue());
-
-    m_valid_type = ValidationType::Valid;
-    wxString info_line;
-
-    const char* unusable_symbols = "<>[]:/\\|?*\"";
-
-    for (size_t i = 0; i < std::strlen(unusable_symbols); i++) {
-        if (m_path.find_first_of(unusable_symbols[i]) != std::string::npos) {
-            info_line = _L("The following characters are not allowed in the name") + ": " + unusable_symbols;
-            m_valid_type = ValidationType::NoValid;
-            break;
-        }
-    }
-
-    bool existing = false;// is_existing(m_path);
-    if (m_valid_type == ValidationType::Valid && existing) {
-        info_line = _L("This name is already used, use another.");
-        m_valid_type = ValidationType::Warning;
-    }
-
-    if (m_valid_type == ValidationType::Valid && m_path.empty()) {
-        info_line = _L("The name cannot be empty.");
-        m_valid_type = ValidationType::NoValid;
-    }
-
 #ifdef __WXMSW__
-    const int max_path_length = MAX_PATH;
+constexpr int max_path_length = MAX_PATH;
 #else
-    const int max_path_length = 255;
+constexpr int max_path_length = 255;
 #endif
 
-    if (m_valid_type == ValidationType::Valid && m_path.length() >= max_path_length) {
-        info_line = _L("The name is too long.");
-        m_valid_type = ValidationType::NoValid;
+struct PathValidator {
+    std::reference_wrapper<std::vector<std::unique_ptr<BulkExportDialog::Item>>> items;
+    using ItemStatus = BulkExportDialog::ItemStatus;
+
+    bool is_duplicate(const fs::path &path) {
+        const int64_t count{std::count_if(
+            items.get().begin(),
+            items.get().end(),
+            [&](const auto &item){
+                return item->path == path;
+            }
+        )};
+
+        return count >= 2;
     }
 
-    if (m_valid_type == ValidationType::Valid && m_path.find_first_of(' ') == 0) {
-        info_line = _L("The name cannot start with space character.");
-        m_valid_type = ValidationType::NoValid;
-    }
+    std::pair<BulkExportDialog::ItemStatus, wxString> operator()(
+        const fs::path &path,
+        const std::string &filename
+    ) {
+        const char* unusable_symbols = "<>[]:/\\|?*\"";
+        for (size_t i = 0; i < std::strlen(unusable_symbols); i++) {
+            if (filename.find_first_of(unusable_symbols[i]) != std::string::npos) {
+                return {
+                    ItemStatus::NoValid,
+                    _L("The following characters are not allowed in the name") + ": " + unusable_symbols
+                };
+            }
+        }
 
-    if (m_valid_type == ValidationType::Valid && m_path.find_last_of(' ') == m_path.length()-1) {
-        info_line = _L("The name cannot end with space character.");
-        m_valid_type = ValidationType::NoValid;
+        if (filename.empty()) {
+            return {
+                ItemStatus::NoValid,
+                _L("The name cannot be empty.")
+            };
+        }
+
+        if (path.string().length() >= max_path_length) {
+            return {
+                ItemStatus::NoValid,
+                _L("The name is too long.")
+            };
+        }
+
+        if (filename.find_first_of(' ') == 0) {
+            return {
+                ItemStatus::NoValid,
+                _L("The name cannot start with space character.")
+            };
+        }
+
+        if (filename.find_last_of(' ') == filename.length()-1) {
+            return {
+                ItemStatus::NoValid,
+                _L("The name cannot end with space character.")
+            };
+        }
+
+        if (is_duplicate(path)) {
+            return {
+                ItemStatus::NoValid,
+                _L("This name is already used, use another.")
+            };
+        }
+
+        if (fs::exists(path)) {
+            return {
+                ItemStatus::Warning,
+                _L("The file already exists!")
+            };
+        }
+
+        return {ItemStatus::Valid, ""};
     }
+};
+
+void BulkExportDialog::Item::update()
+{
+    std::string filename{into_u8(m_text_ctrl->GetValue())};
+    path = m_directory / filename;
+
+    // Validator needs to be called after path is set!
+    // It has has a reference to all items and searches
+    // for duplicates;
+    const auto [status, info_line]{m_validator(path, filename)};
 
     m_valid_label->SetLabel(info_line);
     m_valid_label->Show(!info_line.IsEmpty());
+    m_status = status;
 
     update_valid_bmp();
 
-    if (is_valid()) {
-        boost::filesystem::path field = m_print_to_export->output_path.parent_path();
-        m_print_to_export->output_path = field / m_path;
-    }
-
     m_parent->Layout();
 }
 
-void BulkExportDialog::Item::update_valid_bmp()
-{
-    std::string bmp_name =  m_valid_type == ValidationType::Warning ? "exclamation_manifold" :
-                            m_valid_type == ValidationType::NoValid ? "exclamation"          : "tick_mark" ;
-    m_valid_bmp->SetBitmap(*get_bmp_bundle(bmp_name));
+std::string get_bmp_name(const BulkExportDialog::ItemStatus status) {
+    using ItemStatus = BulkExportDialog::ItemStatus;
+    switch(status) {
+        case ItemStatus::Warning: return "exclamation_manifold";
+        case ItemStatus::NoValid: return "exclamation";
+        case ItemStatus::Valid: return "tick_mark";
+    }
+    return ""; // unreachable
 }
 
-//-----------------------------------------------
-//          BulkExportDialog
-//-----------------------------------------------
+void BulkExportDialog::Item::update_valid_bmp()
+{
+    m_valid_bmp->SetBitmap(*get_bmp_bundle(get_bmp_name(m_status)));
+}
 
-BulkExportDialog::BulkExportDialog(wxWindow* parent, std::vector<PrintToExport>& exports)
-    : DPIDialog(parent, wxID_ANY, exports.size() == 1 ? _L("Save bed") : _L("Save beds"),
-                wxDefaultPosition, wxSize(45 * wxGetApp().em_unit(), 5 * wxGetApp().em_unit()), wxDEFAULT_DIALOG_STYLE | wxICON_WARNING)
+BulkExportDialog::BulkExportDialog(const std::vector<fs::path> &paths):
+    DPIDialog(
+        nullptr,
+        wxID_ANY,
+        paths.size() == 1 ? _L("Save bed") : _L("Save beds"),
+        wxDefaultPosition,
+        wxSize(45 * wxGetApp().em_unit(), 5 * wxGetApp().em_unit()),
+        wxDEFAULT_DIALOG_STYLE | wxICON_WARNING
+    )
 {
     this->SetFont(wxGetApp().normal_font());
 
@@ -151,8 +201,9 @@ BulkExportDialog::BulkExportDialog(wxWindow* parent, std::vector<PrintToExport>&
 
     m_sizer = new wxBoxSizer(wxVERTICAL);
 
-    for (PrintToExport& exp : exports)
-        AddItem(exp);
+    for (const fs::path& path : paths) {
+        AddItem(path);
+    }
 
     // Add dialog's buttons
     wxStdDialogButtonSizer* btns = this->CreateStdDialogButtonSizer(wxOK | wxCANCEL);
@@ -173,22 +224,17 @@ BulkExportDialog::BulkExportDialog(wxWindow* parent, std::vector<PrintToExport>&
 #endif
 }
 
-BulkExportDialog::~BulkExportDialog()
+void BulkExportDialog::AddItem(const fs::path& path)
 {
-    for (auto item : m_items)
-        delete item;
-}
-
-void BulkExportDialog::AddItem(PrintToExport& pte)
-{
-    m_items.emplace_back(new Item{ this, m_sizer, pte });
+    m_items.push_back(std::make_unique<Item>(this, m_sizer, path, PathValidator{m_items}));
 }
 
 bool BulkExportDialog::enable_ok_btn() const
 {
-    for (const Item* item : m_items)
-        if (!item->is_valid())
+    for (const auto &item : m_items)
+        if (!item->is_valid()) {
             return false;
+        }
 
     return true;
 }
@@ -200,13 +246,26 @@ bool BulkExportDialog::Layout()
     return ret;
 }
 
-void BulkExportDialog::on_dpi_changed(const wxRect& suggested_rect)
+std::vector<boost::filesystem::path> BulkExportDialog::get_paths() const {
+    std::vector<boost::filesystem::path> result;
+    std::transform(
+        m_items.begin(),
+        m_items.end(),
+        std::back_inserter(result),
+        [](const auto &item){
+            return item->path;
+        }
+    );
+    return result;
+}
+
+void BulkExportDialog::on_dpi_changed(const wxRect&)
 {
     const int& em = em_unit();
 
     msw_buttons_rescale(this, em, { wxID_OK, wxID_CANCEL });
 
-    for (Item* item : m_items)
+    for (auto &item : m_items)
         item->update_valid_bmp();
 
     const wxSize& size = wxSize(65 * em, 35 * em);
diff --git a/src/slic3r/GUI/BulkExportDialog.hpp b/src/slic3r/GUI/BulkExportDialog.hpp
index cc526000b8..ba8a9e265b 100644
--- a/src/slic3r/GUI/BulkExportDialog.hpp
+++ b/src/slic3r/GUI/BulkExportDialog.hpp
@@ -16,79 +16,74 @@ class wxTextCtrl;
 class wxStaticBitmap;
 
 namespace Slic3r {
-    
 class Print;
 struct GCodeProcessorResult;
 
 namespace GUI {
 
-struct PrintToExport {
-    std::reference_wrapper<Slic3r::Print> print;
-    std::reference_wrapper<Slic3r::GCodeProcessorResult> processor_result;
-    boost::filesystem::path output_path;
-};
-
 class BulkExportDialog : public DPIDialog
 {
 public:
+    enum class ItemStatus { Valid, NoValid, Warning };
+
     struct Item
     {
-        enum class ValidationType
-        {
-            Valid,
-            NoValid,
-            Warning
-        };
+        using Validator = std::function<
+            std::pair<BulkExportDialog::ItemStatus, wxString>(
+                boost::filesystem::path,
+                std::string
+            )
+        >;
+        Item(
+            wxWindow *parent,
+            wxBoxSizer *sizer,
+            const boost::filesystem::path &path,
+            Validator validator
+        );
+        Item(const Item &) = delete;
+        Item& operator=(const Item &) = delete;
+        Item(Item &&) = delete;
+        Item& operator=(Item &&) = delete;
 
-        // Item as a separate control(f.e. as a part of ConfigWizard to check name of the new custom priter)
-        Item(wxWindow* parent, wxBoxSizer* sizer, PrintToExport& path);
+        // Item cannot have copy or move constructors, because a wx event binds
+        // directly to its address.
 
-        void            update_valid_bmp();
-        bool            is_valid()      const { return m_valid_type != ValidationType::NoValid; }
+        void update_valid_bmp();
+        bool is_valid() const { return m_status != ItemStatus::NoValid; }
+
+        boost::filesystem::path path;
 
     private:
-        std::string		    m_path;
-        PrintToExport*      m_print_to_export   { nullptr };
+        ItemStatus m_status{ItemStatus::NoValid};
+        wxWindow *m_parent{nullptr};
+        wxStaticBitmap *m_valid_bmp{nullptr};
+        wxTextCtrl *m_text_ctrl{nullptr};
+        wxStaticText *m_valid_label{nullptr};
+        Validator m_validator;
+        boost::filesystem::path m_directory{};
 
-        ValidationType      m_valid_type    {ValidationType::NoValid};
-        wxWindow*           m_parent        {nullptr};
-        wxStaticBitmap*     m_valid_bmp     {nullptr};
-        wxTextCtrl*         m_text_ctrl     {nullptr};
-        wxStaticText*       m_valid_label   {nullptr};
-
-
-        void        init_input_name_ctrl(wxBoxSizer *input_name_sizer, std::string path);
-        void        update();
+        void init_input_name_ctrl(wxBoxSizer *input_name_sizer, const std::string &path);
+        void update();
     };
 
 private:
-    std::vector<Item*>   m_items;
-
-    std::vector<PrintToExport>* m_exports   {nullptr};
-
-    wxBoxSizer*         m_sizer             {nullptr};
-    wxStaticText*       m_label             {nullptr};
-
-    std::string         m_ph_printer_name;
-    std::string         m_old_preset_name;
-    wxString            m_info_line_extention{wxEmptyString};
+    // This must be a unique ptr, because Item does not have copy nor move constructors.
+    std::vector<std::unique_ptr<Item>> m_items;
+    wxBoxSizer *m_sizer{nullptr};
 
 public:
-
-    BulkExportDialog(wxWindow* parent, std::vector<PrintToExport>& exports);
-    ~BulkExportDialog() override;
+    BulkExportDialog(const std::vector<boost::filesystem::path> &paths);
     bool Layout() override;
-
-    void AddItem(PrintToExport& pte);
+    std::vector<boost::filesystem::path> get_paths() const;
 
 protected:
-    void on_dpi_changed(const wxRect& suggested_rect) override;
+    void on_dpi_changed(const wxRect &) override;
     void on_sys_color_changed() override {}
 
 private:
+    void AddItem(const boost::filesystem::path &path);
     bool enable_ok_btn() const;
 };
 
-}
-
+} // namespace GUI
 }
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 8e1a974863..7eec9d1282 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -5923,6 +5923,12 @@ void Plater::export_gcode_to_path(
     appconfig.update_last_output_dir(output_path.parent_path().string(), path_on_removable_media);
 }
 
+struct PrintToExport {
+    std::reference_wrapper<Slic3r::Print> print;
+    std::reference_wrapper<Slic3r::GCodeProcessorResult> processor_result;
+    boost::filesystem::path output_path;
+};
+
 void Plater::export_all_gcodes(bool prefer_removable) {
     const auto optional_default_output_file{this->get_default_output_file()};
     if (!optional_default_output_file) {
@@ -5937,6 +5943,7 @@ void Plater::export_all_gcodes(bool prefer_removable) {
     const fs_path &output_dir{*optional_output_dir};
 
     std::vector<PrintToExport> prints_to_export;
+    std::vector<fs::path> paths;
 
     for (std::size_t print_index{0};  print_index < this->get_fff_prints().size(); ++print_index) {
         const std::unique_ptr<Print> &print{this->get_fff_prints()[print_index]};
@@ -5952,14 +5959,27 @@ void Plater::export_all_gcodes(bool prefer_removable) {
         };
         const fs::path output_file{output_dir / filename};
         prints_to_export.push_back({*print, this->p->gcode_results[print_index], output_file});
+        paths.push_back(output_file);
     }
 
-    BulkExportDialog dialog(nullptr, prints_to_export);
+    BulkExportDialog dialog{paths};
     if (dialog.ShowModal() != wxID_OK) {
         return;
     }
+    paths = dialog.get_paths();
+    for (std::size_t path_index{0}; path_index < paths.size(); ++path_index) {
+        prints_to_export[path_index].output_path = paths[path_index];
+    }
 
     bool path_on_removable_media{false};
+
+    Print *original_print{&active_fff_print()};
+    GCodeProcessorResult *original_result{this->p->background_process.get_gcode_result()};
+    ScopeGuard guard{[&](){
+        this->p->background_process.set_fff_print(original_print);
+        this->p->background_process.set_gcode_result(original_result);
+    }};
+
     for (const PrintToExport &print_to_export : prints_to_export) {
         this->p->background_process.set_fff_print(&print_to_export.print.get());
         this->p->background_process.set_gcode_result(&print_to_export.processor_result.get());
diff --git a/src/slic3r/GUI/Plater.hpp b/src/slic3r/GUI/Plater.hpp
index 26471b9571..bfdc9bf771 100644
--- a/src/slic3r/GUI/Plater.hpp
+++ b/src/slic3r/GUI/Plater.hpp
@@ -31,6 +31,7 @@
 #include "Jobs/Worker.hpp"
 #include "libslic3r/GCode/ThumbnailData.hpp"
 #include "slic3r/GUI/Camera.hpp"
+#include "slic3r/Utils/PrintHost.hpp"
 
 class wxString;
 
@@ -240,6 +241,8 @@ public:
     void send_gcode();
     void send_gcode_inner(DynamicPrintConfig* physical_printer_config);
 	void eject_drive();
+
+    std::optional<PrintHostJob> get_connect_print_host_job();
     void connect_gcode();
     void printables_to_connect_gcode(const std::string& url);
     std::string get_upload_filename();