How to Include IP Address Under Electronic Signature in Performance Document RTF

We currently use a recruiting RTF template that displays the IP address when a digital signature is provided. However, our performance RTF template does not include the IP address beneath the electronic signature. How can we modify the performance document template to include the IP address in the same way?

Below is a portion of the data model query used for the recruiting documents:

SELECT irc_esignatures.object_id,

       irc_esignatures.person_id,

       irc_esignatures.VALUE_HASH,

       irc_esignatures.Esignature_Id,

       irc_esignatures.full_name,

       irc_esignatures.ip_address,

       irc_esignatures.signature_date

FROM IRC_ESIGNATURES