JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Surface Handlebar tool Used to modify the shape of a surface by manipulating handles. You can access this tool from the following: Ribbon: Modeling > Surfaces > Modify Surfaces Toolbox: Modify B-spline Surfaces Key-in: MODIFY SURFACEHANDLEBAR To Modify a Surface Using Handles Parent topic: Modifying Surfaces