Hello, 
I see there is a difference between the media in the backend of Jommla, and the ones uoploded in the SPpageBuilder.
Exemple, i cn uplaode .mov videos in the MEdia Sp page builder, but not in the backend.
Or, 
In the mediamanager of SPPageBuilder, i manage the videos and pictures.
Then i'm going in the backend
->Componants->EasyStore->Products->Create a new product
and I dont have access to the SP Builder media, i have to upload pictures again in the MEDIA Backend
so it means The media between backend and sppagebuilder are not saved and accessible in the same place.
why is that ? Is is like doing the job twice no ?