Hello I Wand to Add more Colums in Expenses. (Attachments). I edited in the File Purcheses.php for functional

$dakiemtra = '<div class="text-center"><div class="btn-group text-left">'
    . '<button type="button" class="btn btn-default btn-xs btn-primary dropdown-toggle" '
    . lang('dakiemtra') . ' <span class="caret"></span></button>
</div></div>';
	$doanhnghiep = '<div class="text-center"><div class="btn-group text-left">'
    . '<button type="button" class="btn btn-default btn-xs btn-primary dropdown-toggle" '
    . lang('doanhnghiep') . ' <span class="caret"></span></button>
</div></div>';

    $this->load->library('datatables');

    $this->datatables
        ->select($this->db->dbprefix('expenses') . ".id as id, date,reference, {$this->db->dbprefix('expense_categories')}.name as category, amount, note, dakiemtra,doanhnghiep",false)
        ->from('expenses')
        ->join('expense_categories', 'expense_categories.id=expenses.category_id', 'left')
        ->group_by('expenses.id');
		$this->datatables->add_column('Actions', $action, 'id');
		$this->datatables->add_column('dakiemtra', $dakiemtra, 'dakiemtra');
		$this->datatables->add_column('doanhnghiep', $doanhnghiep, 'doanhnghiep');

and edited the Templates, every things fine but Itsn’t show corectly at colums " $doanhnghiep" It’s the Attachment colums, so it show the Link for download.

Thank you for Support