Item-To-Add
When a value is assigned to this property, a new item is added to the list.
Multiple values can be added at the same time, enclosed between parentheses.
The position of the new item can be controlled by the Insertion-Index property.
 
Example - Add a new item to the combo-box
procedure division.
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   modify screen-1-co-1 item-to-add ("Blue""Cyan""Green").
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