Edit Frontmatter and data blocks as forms. Changes are written back to the page’s YAML and can be undone. In a read-only space, forms display their values without allowing changes.

Editing attributes

1. Open a page with frontmatter or a data block and move the cursor out of its YAML to show the form.
2. Change a value in its field. Use the form’s attribute controls to add, remove or reorder attributes.
3. Choose Edit source from the ⋯ menu to edit YAML directly, or press Esc in an input to reveal its attribute. Move the cursor outside the YAML to return to the form.

On a page without frontmatter, hover the first line and click the ⋮ handle to its left, then Add tag. That opens the form with an empty tags field. Type a tag and press Enter, then use + add attribute to add more attributes. Guide/Add Structure and Query shows the workflow. Undo removes your changes.

A data block can contain several objects, separated by ---. + add item appears beneath the last item once it has an attribute. On desktop the ⋮ beside the block has Move up, Move down and Delete for the whole block and, with several items, a submenu per item whose Delete removes that item; on touch devices each item's ⋯ menu has Delete, which removes the whole block for its only item. On frontmatter, Delete removes the entire frontmatter. These changes are undoable.

Configuration

In Workbench/Configuration, switch Edit frontmatter as a form or Edit data blocks as a form off to keep the corresponding YAML visible. A tag may provide its own renderer independently of these default-form settings.

For custom forms and cards, see API/tag#Rendering objects and its render context reference. To update an object from a command or query result, use object.update.