What are Edit Handles?
Use the Element Selection tool to select a wall (or linear, arc, segmented arc, curve, slab, or free form) and use the edit handles to move, scale, modify and make changes graphically.
With an active Element Selection tool, a set of handles appear on an object when it is selected initially and a slightly different set of handles appear on the object when it is selected a subsequent second and third time. The first selection invokes handles that represent the location of points along a baseline, entered when the object was created. Handles for each of the form faces are available when the object is selected a second time. When the object is selected a third time, handles appear at locations for scaling the object.