How to change Laravel crudbooster datamodal to a select2

The below code works and I can create a measurement modal that displays the kgs, grams etc but was wondering if there is a way to do it as a dropdown select2 instead as the list is quite short. the two I've tried below show just the label but no select2 box. Any ideas? regards

$columns = [];
        $columns[] = ['label'=>'Quantity','name'=>'quantity','type'=>'number','required'=>true];
        $columns[] = ['label'=>'Measure','name'=>'measures_id','type'=>'select2','datatable'=>'measures,measure'];
        $columns[] = ['label'=>'Measure2','name'=>'measures_id','type'=>'select2','validation'=>'required|integer|min:0','width'=>'col-sm-5','datatable'=>'measures,measure'];
        //  $columns[] = ['label'=>'Measure','name'=>'measures_id','type'=>'datamodal','datamodal_table'=>'measures','datamodal_columns'=>'measure','datamodal_select_to'=>'measure:measure','required'=>true];

via Chebli Mohamed