Is it possible to load scene, change text, then play from external Javascript?

Hi Simon,

Yes, it’s possible to do that. You get Saola Animate’s document then call Saola Animate’s API. This thread might be helpful: Access Saola Animate from outside - #2 by ToanLS
And here is also an example about how to integrate Saola Animate with ActivePresenter: How to Integrate ActivePresenter with Saola Animate? 

Regards,