New Column option in Interactivebook

Hi,

I am working on new layouts option in Interactive book in H5P.Com, wondering when we add content type in a row, can we upload that particular content type? If we already have one designed.  As I did not find any option. It says create from scratch. I want to add already existing Image Hotspot in interactive book. But couldn't find neigther copy paste option nor upload option. Anyone tried this new layout option in Interactive Book?