78 Chapter 7 Working in Layout Mode
To change the function of a momentary button:
1 In Layout mode, be sure the button screen control is selected.
2 In the Layout Inspector, choose either Single Value or Alternating Value from the Type
pop-up menu.
Choose Single Value if you want the button to function as a single value button, or
choose Alternating Value if you want the button to function as an alternating value
button. You cannot change the function of a single value or alternating value button to
match the function of a momentary button.
Editing Screen Control Parameters
When you select a screen control in Layout mode, the parameters for the screen
control appear in the Layout Inspector where you can edit them. Some types of screen
controls share the same common parameters, and others have different parameters.
The parameters for each type are described in the following section.
To edit screen control parameters:
1 In Layout mode, select the screen control. (When you drag a screen control to the
workspace, it is selected.)
2 In the Layout Inspector, edit the parameters for the selected screen control by choosing
the menu item, typing text, clicking the button, or selecting the checkbox for the
parameters you want to edit.
Keyboard Parameters
You can edit the following parameters for keyboard screen controls.
Hardware Assignment
 Device pop-up menu: Shows the name of the learned keyboard. The device name
may correspond to the name of the keyboard controller, or to a port on the
controller, if it has multiple ports. You can choose another device, or choose All.
 Channel pop-up menu: Shows the MIDI channel on which MainStage receives input
from the keyboard. You can choose another channel, or choose All.
 Velocity Sensitivity slider: Sets the velocity sensitivity for the keyboard. Less means
that higher velocities are required to trigger the maximum value, while More means
that lower velocities trigger the maximum value.
Settings
 Name field: Enter a name for the keyboard. The name appears in the Input pop-up
menu in the Channel Strip Inspector, where you can select the device the channel
strip responds to.
 Number of Keys value slider: Enter the number of keys to display on the keyboard
screen control.
 Lowest Key value slider: Enter the note name for the lowest key.
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