Hi @spaanl48 - I'm unsure exactly what you are referring to, but have you see the basic of t-splines training int he Autodesk Learn catalogue for Fusion? It's located here: https://www.autodesk.com/learn/ondemand/tutorial/basics-of-t-splines-and-the-sculpt-workspace.
If that didn't help, let me know more about your question and I'll do my best to assist.
Thanks!
Amanda