3D FlipBook - is there a way to upload or edit individual pages?

I have successfully uploaded my pdf pages but will find a typo on a single page that needs editing and reuploading, I can't seem to find an option that will allow me to amend the one page instead of what I have to do which is to upload the entire pdf again with the corrected page, surely there should be a simpler way as this is pro?

I am adding audio to each page so this process is an extremely laborious task to keep uploading from scratch and having to attach each individual audio from scratch.