Tips on Customizing Leaky Paywall

How to Hide Leaky Paywall Admin Menus

function plt_hide_leaky_paywall_menus() {
	//Hide "Leaky Paywall".
	remove_menu_page('issuem-leaky-paywall');
	//Hide "Leaky Paywall → Settings".
	remove_submenu_page('issuem-leaky-paywall', 'issuem-leaky-paywall');
	//Hide "Leaky Paywall → Subscribers".
	remove_submenu_page('issuem-leaky-paywall', 'leaky-paywall-subscribers');
	//Hide "Leaky Paywall → Transactions".
	remove_submenu_page('issuem-leaky-paywall', 'edit.php?post_type=lp_transaction');
	//Hide "Leaky Paywall → Insights".
	remove_submenu_page('issuem-leaky-paywall', 'leaky-paywall-insights');
	//Hide "Leaky Paywall → Upgrade".
	remove_submenu_page('issuem-leaky-paywall', 'leaky-paywall-upgrade');
}

add_action('admin_menu', 'plt_hide_leaky_paywall_menus', 11);

Where do I put this code?

How to Hide Leaky Paywall Meta Boxes

function plt_hide_leaky_paywall_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "Leaky Paywall Visibility" meta box.
	remove_meta_box('leaky_paywall_content_visibility', $screen->id, 'side');
	//Hide the "Incomplete User Details" meta box.
	remove_meta_box('incomplete_user_details', $screen->id, 'normal');
	//Hide the "Transaction Details" meta box.
	remove_meta_box('transaction_details', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_leaky_paywall_metaboxes', 20);

How to Hide the "Leaky Paywall Dashboard" Dashboard Widget

function plt_hide_leaky_paywall_dashboard_widgets() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Remove the "Leaky Paywall Dashboard" widget.
	remove_meta_box('dashboard_widget', 'dashboard', 'normal');
}

add_action('wp_dashboard_setup', 'plt_hide_leaky_paywall_dashboard_widgets', 20);