Dynamically change SlideBox options like auto-play

I have a SlideBox in my app. auto-play option is set to false, to start with. There is a toggle button that the user can use to set the auto-play option to true.

My problem is: I have used $ionicSlideBoxDelegate.update(); when user sets toggle to true.
But the SlideBox doesn’t go into auto-play mode.

What am I missing? Aren’t the options updated in $ionicSlideBoxDelegate.update()?

And I am on beta 12

Can you put what you have so far in a codepen?