The Insert Multiple Attachments plugin enhances the default 'Insert Attachment' feature in Obsidian by enabling users to insert multiple attachments at once. This modification allows for a more efficient workflow, particularly when dealing with large numbers of files that need to be attached to a note. With this plugin, users can streamline their note-taking process by bypassing the need to insert attachments one by one, improving productivity and saving time when managing multiple files within their Obsidian vault.