Prevent Audio scrubbing/fast forward

Is there a built-in way to prevent or disable a user skipping ahead in a video? It would be great if they could skip back to previously viewed content, but not skip beyond the furthest point viewed. This is to meet time requirements regulatory training.  

I referred to the below link and did exactly as described. We can see the timeline enabled at bottom in the tutorial whereas in our project it is not enabled. What could be be the reason? https://community.dominknow.com/showMe/Add-an-Audio-Narration-file-to-a-Page-2e480aff    

How do I add audio files to my flow project?  

I wish to import a PowerPoint with audio into Dominknow; the PP comes across OK but, the audio does not. There is only an image (that looks like an audio file) that gets imported where the PP audio object is located.    I can get around this by saving each PP audio and then inserting each one as an audio file, but this seems inefficient.   Any help appreciated.

I have an audio clip on a page in Flow. Is there a way to keep the Next button disabled until the audio has finished playing? I have it set to enable after all the content on the page has been viewed, but the client wants it disabled until the audio has finished. I have used the "Element is complete" trigger, but it enables the Next button as soon as I start the audio, rather than after it has finished playing.

I have a Audio Narration and i have timed the text/elements to the audio, Now i want to play the audio and animation when the user click on the button which is on screen? 

I am using inline questions in my module (in Flow). Learners get one chance to answer the question. However, if they hit submit without having selected an answer, they are not able to go back and select an answer. Is there a way to prevent the inline question from submitting when the learner does not select an answer?   Thank you

Publish Target looks straight-forward to set up and use. Wondering if it includes scored tests as one of the things you can target?