How to change language of pre-installed interface elements

Hello everyone, for my captivate project I use the pre-installed master slides for my quiz. I need the quiz in English and in German, German is the installed language of Captivate. I have been able to change everything except for the labelling of the buttons of the drop down menu on the quiz slides (see attached screenshot, “Auswählen”). Can someone help me how I can change the labelling of the button (not a normal button)? The buttons are not visible […]