Show a single Power View Sheet in Excel Web Access webpart in a SharePoint Online site page

I've got an Excel workbook with a number of Power View sheets. I would like to show one of those sheets in a SharePoint Online site page, using an Excel Web Access webpart. But as far as I am aware, you can only restrict to Named items, and Power View sheets aren't considered named items. Is there a way around this?

I could create seperate files for each Power View sheet but this doesn't seem very efficient given that they are all using the same data model.