The Fit Curves to Mesh Section command in the Sketch > Create panel lets you fit sketch curves to a section line created from a mesh body by the Create Mesh Section Sketch command, in order to reverse-engineer a mesh in Fusion.
The Fit Curves to Mesh Section command fits curves to a section line in a section sketch created from a mesh body by the Create Mesh Section Sketch command.
Choose the sketch curve type, then click to place the start point and end point along the mesh section line.
You can create multiple curves within the same command with various join conditions.