Currently in confirm.php (/components/com_dtregister/views/event/tmpl/confirm.php) Line 148 the JText is defined as DT_NEXT_BUTTON
In some countries eg. Germany it is defined by law to inform user by pressing the order button that he will submit a paid order.
In this case it would be helpful if the JText for this button is different.
We customized it currently with JText DT_CONFIRMATION and add the corresponding text in the Language file DT_CONFIRMATION="Kostenpflichtig Anmelden"
It would be great to have this in the next Version