Set duration to Next Slide / Next Object

I’ve saw some other users questioning abt this thing. Looks like it wasn’t implemented by Prezi yet, is Prezi going to implement it in the future? 
I’m doing a Prezi for my school’s state-level Science Fair’s opening ceremony, and I hope that my Prezi can proceed to the next slide / show next object, according to my desired duration that I’ve set. The 4s, 10, etc autoplay duration isn’t suitable enough for me. It would be perfect if this feature could be implemented.