HappyFiles organises the media library by registering a custom taxonomy called happyfiles_category against the attachment post type. The folder tree lives in wp_terms and wp_term_taxonomy, and each attachment to folder link sits in wp_term_relationships. The plugin's tree UI is excellent for browsing one folder at a time, but the WP media library list still uses the default columns and the tree itself does not answer audit questions like 'which uploads are not in any folder' or 'which folders hold images over 1 MB'.

SleekView reads the same taxonomy and pivots it into proper columns on the attachment row. Folder path, parent folder, tag, MIME type, file size, upload date, and uploader become first-class sortable columns. Saved views like 'attachments with no folder', 'PDFs outside the Documents tree', or 'images over 1 MB in the Hero folder' load in one click. A folder column rendered as a breadcrumb keeps the visual hierarchy while giving the table the flat shape an editor actually wants for bulk work.

Inline edits route through HappyFiles' own taxonomy assignments and the standard wp_set_object_terms path, so moves stay consistent with the tree, the counts, and any access rules the plugin enforces. Bulk moves, bulk retags, and bulk MIME-based cleanup all run through the same hooks the plugin's UI uses. The folder UX stays where editors like it; the table view is for the audit, the cleanup, and the cross-folder reports.

HappyFiles makes one shape of media work easy: browsing inside a folder. The tree UI is clear and fast for that. The shape it does not solve is the cross-folder audit, and on a real site the cross-folder audit is where the work lives.

A marketing lead wants every asset tagged Campaign 2026 whether it sits under Heroes, Banners, or Social. A curator wants every attachment with no folder, sorted by size, so the heaviest strays get homes first. An agency wants a per-folder storage report for a quarterly conversation.

The tree UI cannot show those without click-by-click navigation, and the default media library columns ignore the happyfiles_category taxonomy entirely. SleekView reads the same taxonomy HappyFiles already maintains and turns it into a flat, sortable table with folder, tag, size, and MIME type as proper columns. The drag-and-drop tree keeps doing what it does best, the table sits alongside it for the audits and bulk moves the tree was never the right shape for.