### Howto replace a stuck transaction with another with higher fee ?

bitcoind 0.15.0

The marking option "Request Replace-By-Fee" in the sending transaction GUI page should have a better understandable text.

The sender does not "request" anything when creating the transaction. This is just a tag for a later possibility, as I understand as a rather normal user.

I would suggest something like

"Let me increase the fee of this transaction later, if it should not get confirmed in expected time ('Replace-By-Fee' feature)"
confirmationDialog.exec();
    QMessageBox::StandardButton retval = (QMessageBox::StandardButton)confirmationDialog.result();
    if(retval != QMessageBox::Yes)
    {
        fNewRecipientAllowed = true;
        return;
    }
    
    WalletModel::SendCoinsReturn sendStatus = model->sendCoins(currentTransaction);
    
    processSendCoinsReturn(sendStatus);
    if (sendStatus.status == WalletModel::OK)
    {
        accept();
        CoinControlDialog::coinControl->UnSelectAll();
        coinControlUpdateLabels();
    }
    fNewRecipientAllowed = true;
}
void SendCoinsDialog::clear()
{
    
    while(ui->entries->count())
    {
        ui->entries->takeAt(0)->widget()->deleteLater();
    }
    addEntry();
    updateTabsAndLabels();
}
void SendCoinsDialog::reject()