Can I change the default text-to-speech voice in Captivate 9?

Currently, the "default" text-to-speech voice for me is Julie. However, I always change the voice to Kate. I know I can manually do this under Speech Management (or the Text to Speech button on the Slide Notes). But then I have to manually change every single section of Slide Notes for each slide to Kate's name which is a pain in the neck when I have 50 slides with 3-4 sections of Slide Notes each. There doesn't seem to be a way to mass change the text-to-speech voice for an entire project.

Is there a way to set the default text-to-speech voice for Captivate 9 to Kate? Or am I missing a way to change the text-to-speech voice to Kate for an entire project all at once?

I honestly never use the others, so I'm even open to removing all of the other voices so Kate is the only one left. But I'm hoping that there is some secret setting somewhere that would allow me to change the default either for the project or for Captivate 9 in general.

Thank you!