How Can I add custom statistics to the dashboard?

Hello
I found this array in htdocs/index.php

$dashboardgroup = array(

		'action' =>
			array(
				'groupName' => 'Agenda',
				'stats' => array('action'),
			),
		'project' =>
			array(
				'groupName' => 'Projects',
				'globalStatsKey' => 'projects',
				'stats' => array('project', 'project_task'),
			),
		'propal' =>
			array(
				'groupName' => 'Proposals',
				'globalStatsKey' => 'proposals',
				'stats' =>
					array('propal_opened', 'propal_signed'),
			),
		'commande' =>
			array(
				'groupName' => 'Orders',
				'globalStatsKey' => 'orders',
				'stats' =>
					array('commande'),
			),
		'facture' =>
			array(
				'groupName' => 'Invoices',
				'globalStatsKey' => 'invoices',
				'stats' =>
					array('facture'),
			),
		'supplier_proposal' =>
			array(
				'lang' => 'supplier_proposal',
				'groupName' => 'SupplierProposals',
				'globalStatsKey' => 'askprice',
				'stats' =>
					array('supplier_proposal_opened', 'supplier_proposal_signed'),
			),
		'order_supplier' =>
			array(
				'groupName' => 'SuppliersOrders',
				'globalStatsKey' => 'supplier_orders',
				'stats' =>
					array('order_supplier_opened', 'order_supplier_awaiting'),
			),
		'invoice_supplier' =>
			array(
				'groupName' => 'BillsSuppliers',
				'globalStatsKey' => 'supplier_invoices',
				'stats' =>
					array('invoice_supplier'),
			),
		'contrat' =>
			array(
				'groupName' => 'Contracts',
				'globalStatsKey' => 'Contracts',
				'stats' =>
				array('contrat_inactive', 'contrat_active'),
			),
		'ticket' =>
			array(
				'groupName' => 'Tickets',
				'globalStatsKey' => 'ticket',
				'stats' =>
					array('ticket_opened'),
			),
		'bank_account' =>
			array(
				'groupName' => 'BankAccount',
				'stats' =>
					array('bank_account', 'chequereceipt', 'widthdraw_direct_debit', 'widthdraw_credit_transfer'),
			),
		'member' =>
			array(
				'groupName' => 'Members',
				'globalStatsKey' => 'members',
				'stats' =>
					array('member_shift', 'member_expired'),
			),
		'expensereport' =>
			array(
				'groupName' => 'ExpenseReport',
				'globalStatsKey' => 'expensereports',
				'stats' =>
					array('expensereport_toapprove', 'expensereport_topay'),
			),
		'holiday' =>
			array(
				'groupName' => 'Holiday',
				'globalStatsKey' => 'holidays',
				'stats' =>
					array('holiday'),
			),
	);

How can I add a custom one and get data from my custom module?

I would also be interested

Hello,

you can use the widget system described on this page : widget system

Were you able to solve the problem? If so, can you share the explanations here as well? I still can’t do it. Thank you in advance.