You can select multiple elements to move, copy, or delete. Use the following modifier keys to create a selection.
To select elements in a continuous selection:
Click the first element in the selection.
Press Shift and click the last element.
All elements between the first element and the last element you clicked are selected.
To select elements in a broken selection:
Press Ctrl.
Click the elements you want to select.
Various elements in broken sequence are now selected.