Change variables on Nexus --> Customer Information template

[mbdoctor]

 

_{On the checkout page (for example:}  https://forum.aeurom...heckout/7034/),we'd like to change the headings for 'Returning Customer' and 'New Members'.

 

The headings are populated as variables in the Nexus -> CustomerInformation template.  I cannot locate where the variables are stored.  Are these accessible to IP hosted forum admins?  Alternatively, will it hurt anything to comment out the exisitng H2 and create a new one with the desired language in html?