Config Variables 
The seomatic.config variables are the global plugin configuration variables set in the config.php file. You can copy the config.php file to the Craft config/ directory as seomatic.php to change them in a multi-environment friendly way.
seomatic.config.pluginName– The public-facing name of the plugin.seomatic.config.renderEnabled– Should SEOmatic render metadata?seomatic.config.environment– The server environment, eitherlive,staging, orlocal.seomatic.config.displayPreviewSidebar– Should SEOmatic display the SEO Preview sidebar?seomatic.config.displayAnalysisSidebar– Should SEOmatic display the SEO Analysis sidebar?seomatic.config.devModeTitlePrefix– IfdevModeis on, prefix the<title>with this string.seomatic.config.separatorChar– The separator character to use for the<title>tag.seomatic.config.maxTitleLength– The max number of characters in the<title>tag.seomatic.config.maxDescriptionLength– The max number of characters in the<meta name="description">tag.