Click **Modify** to edit the same fields available on [Add Collection](/admin/settings/collections/add-collection/) — Name, Title, Description, Page Template, and whether category detail URLs are generated.

<p><img src="../../../../../images/admin/settings/collections/collection-detail-update.png" alt="Collection detail page, with Modify/Delete actions and the category tree" class="border" style="max-width: 45%;"></p>

!!! Note
Changing the Page Template changes every category page the Collection generates, the same way a Datatable's display template controls every entry's detail page.
!!!