[sachesi]

The add dialog lists the files of a multi-file torrent with a check beside each, and only the checked ones are downloaded. The torrent's details have the same checks on the Files page, where a change applies two seconds after the last click. A right click, a long press or the menu key opens Select All and Deselect All on either list. With nothing checked, Add stays disabled and the Files page shows a banner instead of applying it.

Unchecking a file never removes data: a file that was already on disk stays there, and only empty placeholders the current run created are left out of the download. Checking a file in again on a running torrent restarts it, and a completed one starts downloading again.

The selection is kept per torrent in a new nullable selected_files column, so the database moves to schema 5; NULL means every file, as before. The Ukrainian catalogue has the new strings.