Creating 2 ratings per post

Hi, i have been trying to use your plugin to vote and sort based on those votings, works great so far! My issue is that i want my users to be able to vote on a post twice like this:

post content: blablabla

wp-postratings (votes based on the text)

wp-postratings (votes based on the image)

is this possible with your plugin? I need those 2 ratings to be added together for an overall rating, while still being able to sort based on each rating. Any help is appreciated.