Hey Pauline,
Do you have Retopoflow 4 installed in Blender?
The course is for users who are new to the retopoflow add-on.
Thanks for explaining. I am considering buying the add-on. I don't know how much that I will need to use it, but...it probably is a good idea to add it.
Pauline
Hi Pauline! Retopoflow 4 is an amazing add-on but it is an investment. I highly recommend it if you believe you'll be needing to do a good bit of retopology down the line. Watch all those videos so you have a full understanding of what the add-on helps with.