Apple Logic Express 7 - Manual (Page 321)

Chapter 13 Hyper Editor 321
This creates one event at every grid value. With very flat slopes, or very fine grids, the
individual grid positions remain unoccupied if the value to be added is the same as the
value of the previous event. This reduces the data-flow along the MIDI bus, without
reducing the resolution of the controller.
When defining the Grid parameter to add a succession of controllers use the motto, “as
coarse as possible and as fine as necessary” to minimize data output. Logic can deal
with very large amounts of data, but unfortunately the same cannot be said of MIDI
itself.
Linear Series in Sections
If you also hold down Shift, you can immediately draw another line from the end point
of the original line.
Adding Individual Events
Use the pencil to add individual events. You can alter the value before you release the
mouse button. The pencil is preset as the second tool (Command key).
Fix Value
If you place a check in the Fix Value checkbox, you can prevent the height of any event
beam being altered with the mouse pointer or pencil.
When adding events with the pencil, all added events are assigned the value of the
previously-selected event. This allows you to draw a succession of events with the same
value.
You can adopt the value of an event (with a fixed value) as a preset, by selecting it with
the pencil. In fix value mode, it is impossible to alter the value by clicking on it.
When adding events with the crosshair tool, the preset value is always used as the start
point of the line.