DCO Post Validator

Allows you to make post, page, custom post elements required: title, content, featured image.

After installing the plugin, you need to go to the Settings -> DCO Post Validator to specify the required elements.

Installation

1. Go to Plugins > Add New.
2. Type DCO Post Validator into the search form in the top-right of the screen.
3. On the search results that appear, click the Install Now button next to the plugin title.
4. Click Activate to activate the plugin.