Thank you for your post!
The Get(AVPlayerAttribute) and the other AVPlayer Scripts may be something to look into for this. They are specifically used in FileMaker Go, though. I'm not able to recommend a way to do this in FileMaker Pro.
I am also going to move this thread from the FileMaker Community Feedback Space, which is specifically for input on the Community itself, to the Discussions Space where you should receive even more views and potentially more advice!
Thanks for your help. I am looking around at it now. To be clear: I am administering a questionnaire using an iPad, so the program will be running using Go.
You might want to look into the Install OnTimer Script step - that might well be your best option.