Hi Anita,

we have added options for download start value fields for multiple ebook pages here's link.
http://biztrends.biz/wp-admin/admin.php?page=download-counter

but there is a minor issue we will fix it.

we also add a page for test here's link.
http://biztrends.biz/ebook-download-text-page

By clicking on (+) icon you can add more field for another ebook page then select page where you want to display, next input field enter starting value and submit after refreshing page you will see the list of values you added to pages. you can see screenshot i have attached. 

also fixed the design of download display and i removed custom download icon html and css which was added by you. it was breaking css and layout.