Apple Logic Pro 7 - Manual (Page 240)

240 Chapter 5 The Environment
Alias
You can create an alias of any Environment Object, and it will behave exactly like the
original. In the case of faders, the alias has its own value—which can be different than
the value of the original Object. This is particularly useful if using text faders, as they
consume a lot of memory—if you need several text faders of the same name, make
several aliases of one original Object.
To create an alias of any Object, select the Object, then choose New > Alias.
Aliases can be reassigned with meta events. A special fader, known as the alias assigner
(which works something like the cable switcher), is used to accomplish this. You can
create one by selecting New > Fader > Specials > Alias Assigner. This will create a meta
fader, with a -1- definition set to 46.
To use the alias assigner, cable its top outlet to the alias, and cable subsequent outlets
to the various originals that you want to assign to the alias. If you set the alias
assigner’s maximum range to match the number of originals, minus 1 (we’re counting
from 0 here), you can then connect the next cable to a new alias, and subsequent
cables to originals for the alias. In this way, the alias assigner can be used to assign
multiple aliases simultaneously.
One situation where you might use an alias assigner is when switching a delay line alias
between different originals (delay lines), set to different delay times. This method is one
of several ways to provide MIDI control over delay time.
Alias Parameters
Aliases share the parameters of their “parent” original Objects, but they also have their
own, special parameters:
Icon & Instrument List Checkbox
As usual, the checkbox next to the word Icon determines whether the alias appears on
the Arrange window’s Instrument List. You can assign any of the usual icons to it.
Ref
The Ref menu is used to select the original on which the alias is based. It is identical to
the Arrange window’s Instrument List.
Channel
The channel parameter causes all events leaving the alias to be channelized to the
selected channel, for everything except faders. (If the setting is All, existing channelized
events are left unchanged).
For faders, the channel parameter causes the alias to act as if the original fader’s In and
Out definitions are both set to the specified channel. (An All setting = no change).