Apple Logic Pro 9 - Manual (Page 681)

You can also alter the width and style of event beams to make event creation and editing
easier.
To set the width of event beams
µ
Choose a Pen Width value in the Event Definition Parameter box.
The exact event position is always marked by the left edge of the beam, regardless of the
beam width.
When you set the Pen Width parameter to Note Length, note event beams are displayed
at their actual length. The Status parameter must be set to Note for this to work.
To change the style of beams displayed
µ
Choose a setting in the Style menu.
• No Frames: Shows the value of the event as a colored beam.
681 Chapter 24 Editing MIDI in the Hyper Editor