Something that would really help me to present my design once it is finished would be to have the ability to copy and paste sections of the completed design to another page and be able to change the prototyping behavior on those sections independent from the main design. 
The purpose of this would be for example, if I am showcasing a particular mobile screen and it’s capabilities I want the viewer or user to only be able to go so far in the prototype and have to move on to a different Flow in order to be able to see the next interaction or sequence of interactions as I see fit. 
This would help greatly in being able to use Slides effectively in terms of controlling the narrative of a project. 
The other obvious benefit is that up to date some interactions only work as designed when the viewer starts that interaction from a certain place in Prototype chain. 
This ability to separate out sections of the design as I have described would enable me eliminate people viewing interactions in any other way than that which I intended.