Add comment to form input in admin:

Here is the way to go…….

<pre>$afterElementHtml = '<p><small>' . ' this is the hint! ' . '</small></p>';

$linkFieldset->addField('field_name', 'text', array(

'after_element_html' => $afterElementHtml,

));

 

reference: http://jaseir.com/magento/add-comment-to-form-input-in-admin/