VirtueMart Forum

Hi there,
is it possible add multi select on plgVmOnProductEdit?
I tried add multi select on plgVmOnProductEdit,
but it not work,when i save in backend,input become empty again

Example:
$label_options = array(0=>'Label1',1=>'Label2,xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'); // lot of option
$html .= VmHTML::row('select','VMCUSTOM_THEINFO_LABEL','customfield_params['.$row.'][custom_label[]]',$label_options,$field->custom_label,'class="inputbox" multiple="true" ','value','text',false);