private void InstallExistingSystemControl()
        {
            if (_startupNewView != null)
            {
                _startupNewView.Startup -= Startup;
            }

            var chorusSystem = new ChorusSystem(LiftProjectServices.PathToProject(Liftproject), Environment.UserName);

            LiftFolder.AddLiftFileInfoToFolderConfiguration(chorusSystem.ProjectFolderConfiguration);
            _existingSystemView.SetSystem(chorusSystem, Liftproject);
            _liftBridgeView.ActivateView(_existingSystemView);
            _existingSystemView.ImportLexicon      += OnImportLexicon;
            _existingSystemView.ExportLexicon      += OnExportLexicon;
            _existingSystemView.BasicImportLexicon += OnBasicImport;
        }