At the moment the collection feature can only be used for the files within the user home directory. I think it would be beneficial to have that option available for all files a user has access to. The current database setup could definitely handle that.
In my use case, users can only access most directories via a share so they can still upload files to their own home directory individually. This way they cannot create a collection with either their own and/or shared files which can be shared with third parties via weblink.
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