Auto Index - when checked the node will automatically output all indices.
Index - select the index within the array.
Add - use this button to add more rows (indices) to the UI.
0: Typeface - the first index in the array.
Create a Text Shape.
Select the Text Shape and, holding alt/option, click the Duplicator icon in the Shelf.
Set Count.x to 1.
Create 3 Typeface Atoms.
Set a different font for each one.
Create a Typeface Array.
+ Add 2 more indices.
Connect each Typeface to each index on the Typeface Array.
Connect typfaceArray.id > textShape.typeface.
Each word in your Duplicator should now have a different typeface.
Typeface is the backbone to what will become proper 'per character' text access so it may change over time as we further develop the feature.