How copy data from one model view to another

[breakthecode]

i am trying to select a data member from a model/view class, here a table view and add that particular data to an another table view. i can copy the data to another table view but only one selected data can add when i click the add button by using my code. can i add more data to table view by modifying the code or is there any other solution

void dcsinter::on_pushButton_clicked()
{
 
    const QModelIndex index = ui->dirtableView->selectionModel()->currentIndex();
    QString selectedtext = index.data(Qt::DisplayRole).toString();
 
    QStringListModel *model2 = new QStringListModel();
    QStringList list;
    list << selectedtext ;
    model2->setStringList(list);
    ui->listtableView_2->setModel(model2);
    ui->listtableView_2->setColumnWidth(0,600);
 
 
 
}

void dcsinter::on_pushButton_clicked()
{

    const QModelIndex index = ui->dirtableView->selectionModel()->currentIndex();
    QString selectedtext = index.data(Qt::DisplayRole).toString();

    QStringListModel *model2 = new QStringListModel();
    QStringList list;
    list << selectedtext ;
    model2->setStringList(list);
    ui->listtableView_2->setModel(model2);
    ui->listtableView_2->setColumnWidth(0,600);



}

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thank you