Ah OK a little closer, almost there. I see that to create an epub fixed layout you need to addsome css and xml, no worries as I know a bit of both but this may sound dumb but where the heck is the epub folder with those files?
For instance, if I create an IBooks Author file I'm NOT able to publish to epub ONLY IBooks and I understand that.
If I create in Pages, I'm able to export to epub BUT the export only generates 1 file ( not a folder)
Sorry if I'm a bit anal here.