The process is fully automatic. Lettering shapes are cut into Complex Fill embroidery objects. When the letters have been converted to Complex Fill, you can then use Compound Chenille and change the stitch type to one of the chenille fills.
Overlaps and stroke order are detected and stitch angle defined. The result is similar to manually digitized alphabets although the quality may not be quite as high. The quality greatly depends on the original shapes, blocked alphabets producing better results than narrower serif type alphabets.