You can add Pantone colors to your document from the Color Gallery. They appear on the Color Line palette as circles.
And I think you can select all instances of a Theme Color in the Names Gallery and then change the theme color to the Pantone color.
I have not done this for a long time though and I may be missing something.
Pantone colors will export to PDF as spot colors. But any color such as an outline that is not a Pantone color will export CMYK. As I recall it is kind of tricky.
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