diff --git a/Core/Inc/pse_stepper_planer.h b/Core/Inc/pse_stepper_planer.h
index 66462de..03df290 100644
--- a/Core/Inc/pse_stepper_planer.h
+++ b/Core/Inc/pse_stepper_planer.h
@@ -20,6 +20,8 @@ void pse_sp_set_dir(pse_stepper_conf* conf, int dir);
 int pse_sp_get_dir(pse_stepper_conf* conf);
 void pse_stepper_planer_tick(pse_unit* units, uint8_t units_num);
 
+
+void pse_sp_set_dir_all(pse_unit* units, int unit_num, int dir);
 void pse_sp_start_all(pse_unit* units, int unit_num);
 void pse_sp_stop_all(pse_unit* units, int unit_num);
 
diff --git a/Core/Src/PSE_unit_edit_screen.c b/Core/Src/PSE_unit_edit_screen.c
index e5f4b9d..7831a51 100644
--- a/Core/Src/PSE_unit_edit_screen.c
+++ b/Core/Src/PSE_unit_edit_screen.c
@@ -114,12 +114,33 @@ static lv_obj_t* volume_widget(lv_obj_t* parent, pse_unit* unit){
 	volume_widget_label = vol;
 	return cont;
 }
+
+lv_obj_t* syringe_widget_label;
+static void update_syringe(keypad_data* data){
+	pse_unit* unit = data->user_data;
+	unit->syringe->diameter = data->value;
+	pse_syringe* syringe = unit->syringe;
+	lv_label_set_text_fmt(syringe_widget_label, "Seringue : \n%s\nD %d.%d mm", syringe->name, syringe->diameter/1000, syringe->diameter%1000);
+}
+static void syringe_edit_handler(lv_event_t* e){
+  lv_event_code_t code = lv_event_get_code(e);
+
+	if(code == LV_EVENT_CLICKED) {
+		pse_unit* unit = lv_event_get_user_data(e);
+		kp_data = (keypad_data){
+			.parent = this_screen,
+			.cb = update_syringe,
+			.user_data = unit,
+		};
+		Keypad_screen_launch(&kp_data);
+	}
+}
 static lv_obj_t* syringe_widget(lv_obj_t* parent, pse_unit* unit){
 	// The main container
 	lv_obj_t* cont = lv_obj_create(parent);
 	lv_obj_set_size(cont, lv_pct(24), lv_pct(100));
 	lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
-	// lv_obj_add_event_cb(cont, unit_widget_clicked_handler, LV_EVENT_ALL, pse_unit);
+	 lv_obj_add_event_cb(cont, syringe_edit_handler, LV_EVENT_ALL, unit);
 
 	pse_syringe* syringe = unit->syringe;
 	// syringe setting
@@ -127,6 +148,7 @@ static lv_obj_t* syringe_widget(lv_obj_t* parent, pse_unit* unit){
 	lv_obj_set_width(vol, lv_pct(100));
 	lv_obj_set_flex_grow(vol, 1);
 	lv_label_set_text_fmt(vol, "Seringue : \n%s\nD %d.%d mm", syringe->name, syringe->diameter/1000, syringe->diameter%1000);
+	syringe_widget_label = vol;
 	return cont;
 }
 
diff --git a/Core/Src/home_screen.c b/Core/Src/home_screen.c
index abd3c61..09833fe 100644
--- a/Core/Src/home_screen.c
+++ b/Core/Src/home_screen.c
@@ -26,6 +26,7 @@ static void run_handler(lv_event_t * e){
 		lv_state_t state = lv_obj_get_state(button);
 		if(state & LV_STATE_CHECKED){
 			lv_label_set_text(label, LV_SYMBOL_PAUSE);
+			pse_sp_set_dir_all(units, units_num, 1);
 			pse_sp_start_all(units, units_num);
 		}
 		else{
diff --git a/Core/Src/pse_stepper_planer.c b/Core/Src/pse_stepper_planer.c
index 508321a..e81ed59 100644
--- a/Core/Src/pse_stepper_planer.c
+++ b/Core/Src/pse_stepper_planer.c
@@ -70,6 +70,11 @@ void pse_stepper_planer_compute_sps(pse_unit* unit){
 	c->step_itvl = numerator / denominator;
 }
 
+void pse_sp_set_dir_all(pse_unit* units, int units_num, int dir){
+	for(int i = 0; i < units_num; i++){
+		pse_sp_set_dir(units[i].stepper_conf, dir);
+	}
+}
 
 void pse_sp_start_all(pse_unit* units, int units_num){
 	HAL_TIM_Base_Start_IT(htim);