IF YOU ARE USING A CUSTOM TEMPLATE NOT BASED ON THE SIX TEMOLATE YOU HAVE TO MODIFY THE CODE SO IT SUIT YOUR CUSTOM TEMPLATE
Go to Addons > Ticket Sensitive Data > Configuration and check the box Custom Integration
For v5 and higher
In supportticketsubmit-steptwo.tpl look for the tag <textarea></textarea> add the code under it
<div id="ticketsdfields"></div>
In viewticket.tpl look for the tag {foreach from=$descreplies key=num item=reply} add the button code on top
<button type="button" data-deptid="{$departmentid}" data-tid="{$tid}" data-cid="{$c}" class="btn btn-primary sensitiveDataBtn">Add or Edit Sensitive Data</button>
For older version
In supportticketsubmit-steptwo.tpl and viewticket.tpl look for the tag <textarea></textarea> add the code under it
{* Ticket Sensitive Data *} {if $ticketsdfields} <div class="row form-group"> <div class="col-sm-12"> <label>{$TSDLANG.sensitivedata}</label> </div> <div class="col-sm-12"> <p>{$TSDLANG.sensitivedatahelp}</p> </div> {foreach key=num item=ticketsdfield from=$ticketsdfields} <div class="col-sm-12"> <label>{$ticketsdfield.name}</label> {$ticketsdfield.field} <span class="help-block">{$ticketsdfield.description}</span> </div> {/foreach} </div> {/if} {* Ticket Sensitive Data *}