You must select a vector object in order to edit it. You can select one or more objects on the same layer, or you can select objects on different layers. You can select vector objects by using the Pick tool or by using the Layers palette. The Pick tool lets you select one or more vector objects quickly. The Layers palette lets you select vector objects regardless of whether they overlap or are currently showing in the image window. For more information about showing and hiding layers, see Viewing layers.
If you want to select multiple objects, hold down Shift, and click the objects.
If you want to select multiple objects, hold down Shift and click each object name.