Branching Scenario

We have been able to successfully link a Kaltura video for example in a H5P scenario branch or interactive book but the captions do not seem to appear. I know that there is an option to add a track but would anyone be able to please tell me what the best options are to ensure that the captions are visible on the video when it is played in H5P? 

Hello.

I ask how to add a hotspot to a branching scenario.

You can see the option of adding video, image and text but not hotspot image.

Thanks.

Hello everybody,

I have a question. I would like to change the background of the start screen of the branching scenario (gray background). I would like to be able to design this individually. Would this be possible somehow through programming?

I'm looking forward to your feedback.

Thanks