When you select an element, various controls and handles appear on or near the element. Use these controls to move the element or modify its size or shape. The types of controls that are available depend on the type of element selected and the type of view.
For example, press Tab to display shape handles for most basic wall types when they are highlighted in elevation or 3D views. In plan views, however, this only works for curtain walls. To display shape handles for a basic wall in plan view, select the wall first, and then press Tab.