Insert schema.org microdata into WordPress pages and posts.
The Schema Creator plugin places an icon above the Post/Page rich text editor (next to the Add Media icon). Click on the icon to select a supported schema, fill in the form, and then insert it into your page/post. The plugin uses shortcode, so you can easily edit the schema after you create it. There are additional options on the Schema Creator Settings page.
Yes, although there is no guarantee that it will indeed show up that way. Google offers a Rich Snippet Testing tool to review.
locale is not provided in the
/languages/ subfolder, you have to either wait or create your own language file. For example, you could use POEdit to open default.po and save it as your own locale and translate it.