The Dual List model screen is used to display the items or parameters that make up a menu or submenu of settings. The main feature of this screen model is to present a table with two columns. The left column represents the name of the parameter or component item of the menu. The right column shows the current value of the parameter, or the action to be performed for the menu item.
The model consists of graphic items, touch-sensitive buttons, title, and a two-column table containing the items and / or parameters of the menu or submenu.
The following figure shows an example of a Dual List – Job Configuration screen, showing the details of the component items of the screen. In the example, the selected item is a parameter – Operator, so the action button shown on the screen is the Edit button 
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| Item | description |
|---|---|
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Title bar of the dual list screen, containing the title name text. |
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Touch-sensitive button to return to a screen, returning to the previous menu. |
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Table title line, containing the text “Parameter” in the first column, and “Value” in the second. |
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Touch-sensitive button to select the option above the currently selected one, or marked with a blue background. |
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Touch-sensitive button to select the option below the currently selected one, or marked with a blue background. |
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Option selected, highlighted with blue background. |
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Other unselected options, which are presented with a white background. The rectangular area of each option is touch sensitive, and the corresponding row in the table is selected when clicked.. |
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Touch-sensitive button that performs the action for the selected parameter or item. |
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Vertical scroll bar, graphically indicating the position of the list currently displayed within the total number of items. |
