"Resume Saved State" - no longer works if Next button disabled when timeline begins?

Even quicker workaround:

Change state of next button to Disabled
     when the timeline starts
          if <Object that needed to be visisted to advance>'s state is not equal to Visited

But its still a workaround, and I should have to do this for a basic behavior like this. 

So, as of now, storyline does not support "Prevent user from moving to next slide until the user have completed an action on current page. And also enable the user to revisit this slide without getting stuck forever"? And this is intended as "by design"? Weird decision :P

Or for that matter;
Its not possible, by default, to perform any actions when timeline starts, only the first time the slide is viewed, even if it's set to resume saved state. Cant possibly be the intended way this should work. :P