No proper documentation and the plugin is useless for me

Hello @abdul-samad-k-t,

Thank you for your feedback – I will make sure to pass this to our usage writer. As for capacity – you have two alternatives to achieve this:
a) Use dummy service providers
b) Add these codes in functions.php and modify as required:

	function increase_capacity( $capacity, $service_id ) {
		return 10;
	}
	add_filter( 'app_get_capacity', 'increase_capacity', 10, 2 );

kind regards,
Kasia