Hi,
You would need to create a font control. To create a control just go to Settings > Google Fonts, give your font control a name, add the appropriate CSS selector and save the control. It will then become available in the customizer.
To change the title on your pages just do the following:
- Create a font control called: Page Titles
- Add the following in the Add CSS Selectors Box:
.pin-article h1.title
To view any font controls that you have created you need to be in the customizer (In your WordPress Admin area go to Appearance > Customize) and your font controls will be under the typography section.
Generally speaking to get the most out of this plugin you need to have knowledge of your themes CSS selectors. If you do not have this knowledge then any basic developer should be able to give you a hand with it. Let me know how you get on. Cheers
Sunny