Where is the add contributor template?

I am running OJS 3.0.2.0. I would like to edit the form to add contributors (step 3 submission process - “add contributors”).

Specifically I need to make the Contributor role auto default to author and then hide the option to change it. I’d also like to hide the “Include this contributor in browse lists?” option but keep it selected. I imagine there is a tpl file where I could make this happen but I cannot find it.

Thanks
James

Oh my - thank you so much - I was going crazy.