You can include any text you wish in a signature template and there is enough space to include compliance footer information. 

However, we do not recommend you use Ancoris Signatures to manage compliance footer information as it is inherently static information as opposed to typical signature information which is personalised for each user.

Google now allow you to manage compliance footer information (by Organization Unit) in the G Suite Admin. 

Simply go to the Admin Panel then go to Apps > G Suite > Gmail > Advanced Settings > Append Footer.

For more information please see: