Last post import date - To see how active the feeds are

Hello,

I know its not in the plugin but maybe there is some trick to do this because more with the same function got this to.

I have many feeds to import (80+) Sometimes feeds becoming inactive by placing no post on their blog,
and i need to remove them.
but now its hard to find a blog wich is inactive.

is there some trick to see in the row like (last check) (next check) also place a (last post date) To see the date of the last imported post?