Front-End Editing

Hello!
I’m very new to S2Member and have been looking through what Support documentation there is and I cannot find the answer to my question but apologies if this has already been answered!
Is there a way of editing just one PayPal pro-form on the front-end side without editing the php coding? I have one form that I’d like to change the “First Name” to something like “Confirm First Name” but only on one form - all my others are fine. I don’t know how to properly set-up an MU Plugin, so I’m afraid of doing that and messing up my files.
Again, I’m sorry if someone has already asked and had this answered.
Thank you,

There is actually a huge body of documentation at the s2Member Knowledge Base here: https://s2member.com/kb/

What you need is here: https://s2member.com/kb-article/s2member-pro-forms/#-customizing-pro-forms