The Simple SEO preview module provides a new field to let content editors manage node meta title & meta description.
A Google preview help contributors visualize how non-visible meta title & meta description are taken by Google search engine.

Dependency

Token

Content type config form

A default configuration form allow contributors to define defaults title & description values for a content type (can be overriden then in the add/edit node form of a specific node).

Field configuration

Several basic options are available in the content type form display configuration so it's possible to choose:

If the Simple SEO preview field is collapsed/expanded in the node edition page (default: expanded)
The title input field size (default: 60)
The title maximum characters (to respect Google recommandations) (default: 60)
The description textarea number of rows (default: 3)
The description maximum characters (to respect Google recommandations) (default: 155)

Permissions

In addition, two permissions are created to give contributors the ability to define who can access the Simple SEO preview field. Content editors may:

Only view the Google preview (no possibility to administer meta title & meta description)
Administer meta title & meta description (and view the Google preview)

RTBC issues for Simple SEO preview

Filters