By default, there is no possibility to add custom font in Theme Options, this request additional customization (additional customization in source code is out of our support scope).
You may use css code in Theme Options > Styling > Custom css or style.css file of child theme, for example:
Our mission is to help Internet businesses and their customers interact in a way that mirrors real-world customer experience: personal, human, and fun.
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Lorem ipsum dolor sit amet consectetur adipisicing elitsed do
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