Can change step

mainwindow.h

@@ -24,6 +24,7 @@ public:
     void onTextChanged();
     void loadNewPath();
     void loadPath(Path* p);
+    void loadStep(Step s);
     void addNewPath();
     void addNewStep();
     void exportHTMLMap();
@@ -46,6 +47,8 @@ private slots:
 
     void on_pathNumber_valueChanged(int arg1);
 
+    void on_stepNumber_valueChanged(int arg1);
+
 private:
     Ui::MainWindow *ui;
     QString currentFile;