Editing Meta field labels

Hi, Sorry put this in wrong place earlier!

Testing out this plugin, I tried changing the field name as described here: http://codex.easypropertylistings.com.au/article/206-editing-meta-field-labels-and-attributes-on-new-edit-listing-page

added this code to functions file, but field name has not changed. Any assistance greatly appreciated.

function my_edited_property_video_url($field) {
$field[‘label’] = __(‘EPC URL’,’epl’);
return $field;
}
add_filter(‘epl_meta_property_com_video_url’,’my_edited_property_com_epc’);

Thanks