The Sketcher app provides a large number of functionality for performing operations on profiles.
Operation Profile Concepts Aligning Points Creating Corners Creating Chamfers Trimming Elements Breaking and Trimming Elements Closing Elements Complementing an Arc (Circle or Ellipse) Breaking Elements Breaking/Trimming Use-Edges Trimming Splines and Connecting Curves Trimming Elements using Boolean Trim Operations Setting Constraint on an Arc of a Use-edge Trimming Multiple Elements Creating Mirrored Elements Moving Elements by Symmetry Transforming Geometry Duplicating 2D Elements Using Offset Duplicating Multiple 2D Elements Using Offset Creating Spline Offsets Creating Profile Offsets Copying and Pasting Elements Creating a Tangent Arc Projecting 3D Elements Working with Output Features