When one of the editing tools is being used, the currently active line or area is surrounded by a box. If that box is selected, the line or area can be moved, resized, mirrored, rotated and skewed. The selection tools can also be used to select and manipulate several individual objects at once, or several objects forming a Group.
You can select more than one object by holding down Ctrl and clicking the desired objects in the FilmStrip.See FilmStrip.You can also select a sequence of objects in the FilmStrip with Shift. See Select Objects in the FilmStrip. To change the selection of objects on the Canvas, use Add to Selection
and Remove from Selection . See Add To Selection and Remove From Selection.