Protected Content Paypal butons

Hey,

How do I change the recurring options buttons to "subscribe" but the single one-off option to "buy now". Currently, all three levels shows "subscribe".

I have also tried putting in the url with the buttons that have the tiny credit card logos in the setup but they do not appear when I do that.

Lastly, there are two buttons that appear. I just need one. How can I remove the bottom one? See attached.