First post, so I hope this is worthy!
Anyway, you know how there is the option to add a peer to the list, and how when you resume downloading, that the trackers will need to resource all of the peers, how about, in the torrent properties screen, you can go to advanced tab and click "dump to peers to .bcpl (bitcomet peers list) file", which will be automatically reloaded when the torrent resumes.
When the download continues, bitcomet will search for these peers as they were last seen providing a seed, if they are not up however, they will be removed, and when this process is completed, the tr