Apple Logic Pro 9 - Manual (Page 683)

To create multiple events in a linear fashion
1 Select the Line tool.
Line tool
2 Click a position on the appropriate event definition lane.
A help tag appears, showing the exact position and event value in the top line.
3 Move the mouse to the desired end point of the line (to the right or left).
As you do so, you see the line trailing behind the Line tool pointer, with the exact position
and event value shown in a help tag.
4 Click the end point to create several event beams, aligned along the line.
New events are created at each grid position (in accordance with the Grid parameter),
within the line start and end points.
To create or alter a linear series of events in sections
1 Select the Line tool.
Line tool
2 Click a position on the appropriate event definition lane.
A help tag appears, showing the exact position and event value in the top line.
3 Move the mouse to the desired end point of the line (to the right or left).
683 Chapter 24 Editing MIDI in the Hyper Editor