Add Google Fonts that can be used for your Essential Grids.
Find the font you wish to use from fonts.google.com, and click the "+" icon.
Next, select the black bar toward the bottom of the page to view the font's details.
And then copy the bold text as shown in the following screenshot. This is the font's official "Parameter".
Next, from the "PunchFonts" page, choose "Add New Font".
Then give the font a "handle", paste in your Google Font's official "Parameter", and finally, select "Add New Font".
The “Handle” can be anything, but the “Parameter” must match what was copied from fonts.google.com