Extend/options/product code field

I’m definitely a noob when dealing with code changes. Just trying to find a way to extend my product code field for my options. Currently it won’t contain my entire code as I’m adding multiple codes depending on my distributors. Later I will hide all but the first code.

Not sure if I should be in the root or public directory. Tried going to skins/mytemplate/Customer/Views/products/components and found “amount product code” Anywhere close to where I need to be.

Probably not something I should be trying, but It can’t be that difficult to probably change a number…right?

Any suggestions would greatly be appreciated. Happy New Year!