Currently we can sort the videos inside a playlist so that they show in a specific order on the playlist page.
For example, I have a playlist that shows the most recent video first, but the attachments show the most recent last. This forces users to scroll down the playlist page instead of having everything that's most recent visible at the top.
I would love to have the same sorting feature that we have for videos, to be available also for attachments.
Another idea is to make the attachments follow the same sorting as the videos by default.