It would be great if a user had the option to download all files from a Collection, in the same way that they can download all files from a Item.
Part of the service we offer researchers involves curating data into suitable units, such as splitting into items and creating collections - which can improve presentation online but hinders a user from simply getting all the data if they need it. Especially if a lot of items are involved.
I'm aware that there are potential issues around the total size of files being sent to the archive utility but that for the vast majority of cases this won't be an issue, so would it be possible to base this on overall size and just throw an error if the collection is too large?
If you can run Python, this gist might be helpful: https://gist.github.com/bendichter/c2380991b7c403aeec247c259d38e9e5