diff --git a/app_win_2_back.cpp b/app_win_2_back.cpp
index 0ad2952..dcdb5ce 100644
--- a/app_win_2_back.cpp
+++ b/app_win_2_back.cpp
@@ -50,6 +50,8 @@ namespace gui_to_app {
                 if (!app.insert_obj(obj)) {
                     on_stack = true;
                     switch_->set_active(false);
+                } else {
+                    app.update_labels();
                 }
             } else {
                 if (!app.erase_obj(obj)) {
@@ -59,6 +61,8 @@ namespace gui_to_app {
                         "Erasing object {} was not successful",
                         character::BillyObjects::billy_object_to_string(obj).data()
                     );
+                } else {
+                    app.update_labels();
                 }
             }
         }
@@ -165,10 +169,24 @@ namespace gui_to_app {
             return;
         }
         debug_button = app_builder->get_widget<Gtk::Button>("debug_button");
-        hab_base = app_builder->get_widget<Gtk::Label>("habilete_label_base");
-        hab_carac = app_builder->get_widget<Gtk::Label>("habilete_label_carac");
-        hab_mat = app_builder->get_widget<Gtk::Label>("habilete_label_materiel");
-        hab_total = app_builder->get_widget<Gtk::Label>("habilete_label_total");
+        hab_labels = CaracInterface<Gtk::Label>{
+            {
+                "habilete_label_base",
+                "habilete_label_carac",
+                "habilete_label_materiel",
+                "habilete_label_total"
+            },
+            app_builder
+        };
+        endu_labels = CaracInterface<Gtk::Label>{
+            {
+                "endurance_label_base",
+                "endurance_label_carac",
+                "endurance_label_materiel",
+                "endurance_label_total"
+            },
+            app_builder
+        };
 
         debug_button->signal_clicked().connect(sigc::mem_fun(*this, &AppWin2Back::debug_button_clicked), false);
     }
@@ -182,17 +200,52 @@ namespace gui_to_app {
         quit();
     }
 
-    bool AppWin2Back::switch_signal_handler(const bool flag, const character::billyEnums &obj) noexcept {
-        return flag ? gestionnaire.insert_object(sheet, obj) : !gestionnaire.erase_object(sheet, obj);
+    void AppWin2Back::debug_button_clicked() const noexcept {
+        const json j{ { "character_sheet", sheet } };
+        spdlog::info("Character sheet in json: \n{}", j.dump(4, ' ', true));
     }
 
-    void AppWin2Back::debug_button_clicked() const noexcept {
-        spdlog::info("Display objects");
-        for (const auto &obj: sheet.get_objects() | views::values) {
-            spdlog::info("Object: {}", obj->to_string());
+    static void convert_to_label(std::array<char, 10> &convert,
+                                 const std::string_view &err_msg,
+                                 const uint32_t data,
+                                 Gtk::Label *const __restrict label) noexcept {
+        if (const auto [ptr, ec] = std::to_chars(convert.data(), convert.data() + convert.size(), data);
+            ec != std::errc()) {
+            spdlog::error("An error occurred while converting {} value: {}",
+                          err_msg,
+                          std::make_error_code(ec).message());
+        } else {
+            const Glib::ustring converted{
+                convert.data(), static_cast<std::string::size_type>(ptr - convert.data())
+            };
+            label->set_label(converted);
         }
     }
 
+    static void update_in_labels(const character::characteristic::Characteristic &charac,
+                                 const std::string_view short_name,
+                                 const CaracInterface<Gtk::Label> &labels) noexcept {
+        std::array<char, 10> convert{};
+        convert_to_label(convert, std::format("base {}", short_name), charac.get_base(), labels.base);
+        convert_to_label(convert,
+                         std::format("carac {}", short_name),
+                         charac.get_carac(),
+                         labels.carac);
+        convert_to_label(convert,
+                         std::format("materiel {}", short_name),
+                         charac.get_materiel(),
+                         labels.mat);
+        convert_to_label(convert,
+                         std::format("total {}", short_name),
+                         charac.get_total(),
+                         labels.total);
+    }
+
+    void AppWin2Back::update_labels() const noexcept {
+        update_in_labels(sheet.get_habilete(), "hab", hab_labels);
+        update_in_labels(sheet.get_endurance(), "endu", endu_labels);
+    }
+
     bool AppWin2Back::insert_obj(const character::billyEnums &obj) noexcept {
         return gestionnaire.insert_object(sheet, obj);
     }
diff --git a/app_win_2_back.hpp b/app_win_2_back.hpp
index b0f30d5..2238ccf 100644
--- a/app_win_2_back.hpp
+++ b/app_win_2_back.hpp
@@ -5,6 +5,7 @@
 
 #include <glibmm/refptr.h>
 #include <gtkmm/application.h>
+#include <gtkmm/builder.h>
 #include <gtkmm/checkbutton.h>
 
 #include <billy_objects.hpp>
@@ -15,12 +16,28 @@ namespace learn_gtkmm4 {
 }
 
 namespace Gtk {
-    class Builder;
     class Label;
     class Button;
 }
 
 namespace gui_to_app {
+    template<typename T>
+    struct CaracInterface final {
+        T *base{ nullptr };
+        T *carac{ nullptr };
+        T *mat{ nullptr };
+        T *total{ nullptr };
+
+        CaracInterface() = default;
+
+        explicit CaracInterface(const std::array<std::string_view, 4> &list,
+                                const Glib::RefPtr<Gtk::Builder> &builder) :
+            base(builder->get_widget<T>(list[0].data())),
+            carac(builder->get_widget<T>(list[1].data())),
+            mat(builder->get_widget<T>(list[2].data())),
+            total(builder->get_widget<T>(list[3].data())) {}
+    };
+
     class AppWin2Back final : public Gtk::Application {
     public:
         ~AppWin2Back() noexcept final = default;
@@ -58,10 +75,10 @@ namespace gui_to_app {
 
         void on_quit() noexcept;
 
-        bool switch_signal_handler(bool flag, const character::billyEnums &obj) noexcept;
-
         void debug_button_clicked() const noexcept;
 
+        void update_labels() const noexcept;
+
         bool insert_obj(const character::billyEnums &obj) noexcept;
 
         bool erase_obj(const character::billyEnums &obj) noexcept;
@@ -83,10 +100,9 @@ namespace gui_to_app {
         selection_button *rock_kit_switch{ nullptr };
         selection_button *sack_switch{ nullptr };
 
-        Gtk::Label *hab_base{ nullptr };
-        Gtk::Label *hab_carac{ nullptr };
-        Gtk::Label *hab_mat{ nullptr };
-        Gtk::Label *hab_total{ nullptr };
+        CaracInterface<Gtk::Label> hab_labels;
+
+        CaracInterface<Gtk::Label> endu_labels;
 
         Gtk::Button *debug_button{ nullptr };
 
diff --git a/window_ui.ui b/window_ui.ui
index c6cf1fd..a9d7e38 100644
--- a/window_ui.ui
+++ b/window_ui.ui
@@ -30,6 +30,7 @@
                       <object class="GtkGrid">
                         <child>
                           <object class="GtkGrid">
+                            <property name="hexpand">True</property>
                             <child>
                               <object class="GtkLabel">
                                 <property name="halign">start</property>
@@ -43,7 +44,8 @@
                             </child>
                             <child>
                               <object class="GtkLabel" id="habilete_label_base">
-                                <property name="halign">end</property>
+                                <property name="halign">center</property>
+                                <property name="hexpand">True</property>
                                 <layout>
                                   <property name="column">1</property>
                                   <property name="row">0</property>
@@ -62,7 +64,7 @@
                             </child>
                             <child>
                               <object class="GtkLabel" id="habilete_label_carac">
-                                <property name="halign">end</property>
+                                <property name="halign">center</property>
                                 <layout>
                                   <property name="column">1</property>
                                   <property name="row">1</property>
@@ -81,7 +83,7 @@
                             </child>
                             <child>
                               <object class="GtkLabel" id="habilete_label_materiel">
-                                <property name="halign">end</property>
+                                <property name="halign">center</property>
                                 <layout>
                                   <property name="column">1</property>
                                   <property name="row">2</property>
@@ -105,6 +107,9 @@
                         </child>
                         <child>
                           <object class="GtkLabel" id="habilete_label_total">
+                            <property name="halign">center</property>
+                            <property name="hexpand">True</property>
+                            <property name="valign">center</property>
                             <layout>
                               <property name="column">2</property>
                               <property name="row">0</property>
@@ -133,8 +138,11 @@
                     </child>
                     <child>
                       <object class="GtkGrid">
+                        <property name="hexpand">True</property>
+                        <property name="vexpand">True</property>
                         <child>
                           <object class="GtkGrid">
+                            <property name="hexpand">True</property>
                             <child>
                               <object class="GtkLabel">
                                 <property name="halign">start</property>
@@ -148,7 +156,8 @@
                             </child>
                             <child>
                               <object class="GtkLabel" id="endurance_label_base">
-                                <property name="halign">end</property>
+                                <property name="halign">center</property>
+                                <property name="hexpand">True</property>
                                 <layout>
                                   <property name="column">1</property>
                                   <property name="row">0</property>
@@ -167,7 +176,7 @@
                             </child>
                             <child>
                               <object class="GtkLabel" id="endurance_label_carac">
-                                <property name="halign">end</property>
+                                <property name="halign">center</property>
                                 <layout>
                                   <property name="column">1</property>
                                   <property name="row">1</property>
@@ -186,7 +195,7 @@
                             </child>
                             <child>
                               <object class="GtkLabel" id="endurance_label_materiel">
-                                <property name="halign">end</property>
+                                <property name="halign">center</property>
                                 <layout>
                                   <property name="column">1</property>
                                   <property name="row">2</property>
@@ -210,6 +219,8 @@
                         </child>
                         <child>
                           <object class="GtkLabel" id="endurance_label_total">
+                            <property name="halign">center</property>
+                            <property name="hexpand">True</property>
                             <layout>
                               <property name="column">2</property>
                               <property name="row">0</property>