How do I make my paypal payment option open in a new window?

How do I get my paypal payment window to open in a new window?  I have multiple payment options and when they choose paypal right now it does not submit the rest of my form.  I'd like to have paypal open in a new window so both are completed.

I would like to apologize for any inconvenience, however, I'm afraid that we do not have a feature where the PayPal page will be opened on a new window after clicking the submit button of the form integrated with PayPal.

If you want, you can hire a programmer that will implement such using the full source code of the form. — How-to-get-the-Full-Source-Code-of-your-Form