WP125 ad owner

Hi there.
First thanks for this plugin, awesome! But i found out that it would be nice to add one option.

Is it possible to, maybe by meta, add “Owner” field to an ad and associate it with a user so then he/she could see ads owned by them and the date the ad will end, and maybe a “refresh add” link. But the first two would be great.

Any ideas, possible features?

http://ww.wp.xz.cn/extend/plugins/wp125/