To take full advantages of OMF template powered modules you need to learn about the font's available opentype features (eg: one storey ɑ). Also to customize the variable font's weight/width/italic angle you need to learn how many axes are available and their tag and value ranges.
To customize the font's full potential in your system, you can easily see a font's full features by uploading the font here:
https://wakamaifondue.com/beta/ I suggest if you are typographic enthusiast and really care about customizing the OMF Powered modules, extract the font and upload the font to this great website and then customize according to your taste.