Concerning what directory is used for the torrent metafile. Make it so you can choose your own directory in case you have a large number in a different folder.
Change this to let the user choose the folder for torrent metafiles to share.
To offer/advertise certain .torrent metadata links, click the Channels page --> share button --> edit this page --> + Add --> transfers. Next, select from your list of torrent links and click add selected transfers. Again, these do not need to be active transfers, they can be in offline status.
Spread the Peace!