Any other solution to this? Just downloaded the trial, and want to back up like 30TB worth of files to B2, but this blows my mind that it's not an option yet. I too, thought that the modified X days ago would only backup files modified within the last X days - but that's not accurate, I guess. It's backing up a ton of data I don't want. I only want it to backup data modified within the last day, but don't want it deleting everything either, so the retention policy shouldn't have to be changed for this weird design.