Click on the Select button and then do one of the following:
Click outside the objects in question, and drag a selection box around them all. When the box is surrounding the shapes you require, release the mouse button. All the objects within the selection will now display their handles.
Click on the first object and then click on subsequent objects with the Shift key held down.
Choose the Select All command from the Edit menu to select every object in the drawing.
When a group of objects has been selected, "handles" will appear on every selected object:
See also: