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License key

This plugin was intended to work without any additional option pages. So there is no license key settings page.

How to set it in your plugin? Using WordPress filter hook rudr_simple_metabox_license_key. You can insert the code below to your current theme functions.php or to a separate plugin if you want.

add_filter( 'rudr_simple_metabox_license_key', 'rudr_license_key' );
 
function rudr_license_key() {
	return 'YOUR LICENSE KEY IS HERE';
}

P.S. Please do not forget that your license key matches your billing email / PayPal email.