How display properties are shown when multiple displays are used
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When no display is selected: The default value is displayed.
When one display is selected: Settings for the selected display are displayed.
When two displays are selected (e.g. in sequence of ID 1 and ID 3): The settings for ID 1 are displayed before the settings for ID 3.
When the All+Select checkbox is checked and all displays are selected: The default settings are displayed.
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