I'm using Ktorrent mainly for Dimeadozen, and want to maintain my ratio high. Problem is, there comes in a big amount of new torrents every day, and most of my seeds just take up space most of the time. Then, after many days of no traffic, someone decides to leech on.

Is there a way to let Ktorrent handle my torrent in a fashion that keeps it online if there's a reason to, and otherwise keep it offline? I know this might sound a bit hopeful.
No traffic for the last, say, 14 days might be an indication that I should stop seeding. Is there a way to do that, or any other practical and efficient solutions?

Thanks!

- Ketil