Apple Logic Pro 8 - Manual (Page 171)

Chapter 8 Basic Operations 171
 Length of the region.
During operations involving events, the help tag looks something like this:
From left to right, the values indicate:
 Name of the operation.
 Mouse (or event) position.
 Event type.
 Event MIDI channel.
 First data byte (note pitch, for example).
 Second data byte (note velocity, for example).
 Event length (note length, for example).
Using the Shortcut Menu
Control-clicking anywhere in the Arrange, Piano Roll Editor, and all List Editors, launches
a shortcut menu (also known as the context menu) that can be used for a number of
selection and editing tasks.
The shortcut menus differ between (and within) windows, based on both the selection
status of events or regions within the window, and also the type of information that
the editor deals with.
The items that appear in the menu will update to reflect the current context. As
examples in the Arrange area:
 An Arrange window with no regions or no selected regions: A number of Select and
Paste commands, plus Scroll in Play are available.
 With one or more regions selected in the Arrange: Cut, Copy, and Delete, Nudge,
Lock/Unlock SMPTE Position and Region Name and Color commands become
available.
Note: You can always access the shortcut menu with a Control-click, but can also make
use of the right mouse button to open it. To do so, ensure that the Right Mouse Button:
Opens Shortcut Menu pop-up menu item is chosen in the Preferences > Global >
Editing tab.