Apple MainStage 2 - Manual (Page 116)

When you assign a button screen control using the Learn button, MainStage attempts
to determine which type of button on your hardware is sending the MIDI message, and
sets the value in the Type pop-up menu in the Screen Control Inspector to the correct
value for that button type. To enable MainStage to determine the correct value, press
the button exactly three times when you are learning it. Pressing the button three times
helps ensure that MainStage determines if the button is a single value, an alternating
value (binary), or a momentary button. In most cases, there is no need to change the
default values unless you intend to use the button for a specific, non-standard purpose.
You can change the function of a momentary button to match the function of a single
value or alternating value button in MainStage.
To change the function of a momentary button
1 In Layout mode, be sure the button screen control is selected.
2 In the Screen Control 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 Screen Control Inspector where you can edit them. Most screen controls
share the same common parameters, but some types have different parameters according
to their function. The parameters for each type are described in the following section.
For most Hardware Input parameters, there is no need to change the default values
MainStage sets when you learn a controller assignment unless you intend to use the
screen control for a specific, non-standard purpose.
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 Screen Control 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.
116 Chapter 7 Working in Layout Mode