Input Entry Levels
When you paint an item on an input image, you designate the item's entry level (0 through 9). This entry level establishes the point in time when the item becomes editable.
If the entry level is 0, the item is always editable.
If the entry level is nonzero, a user first sees the item in the data entry level represented by the nonzero value. For example, an entry level of 1 indicates that the item is initially active. An entry of 2 indicates that the item becomes active after the user selects return for the first time. An entry level of 3 indicates that the item becomes active after the user selects return for the second time, and so on through the highest entry level used.
The modifiability of an item based on its entry level can be overridden with OK INPUT and NO INPUT statements.
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