Hi Keith,

If you are using BSelect for multi select input, you could add the following options to it:

BSelect::create(array(
    "name"=>"singleBSelect",
    "dataStore"=>$this->dataStore("customers"),
    "dataBind"=>"customerName",
    'options' => array(
        'numberDisplayed' => 5,
        'includeSelectAllOption' => true,
        // 'includeResetOption' => true,
    )
));

Let us know if you have other things in mind. Thanks!