isCOBOL Evolve : User Interface : Controls Reference : ENTRY-FIELD : Properties : Visible
Visible
This property assumes a value of "0" if the Entry-Field control is not visible, "1" if it is visible.
 
Example - Define an entry-field initially invisible to make it visible on produce division later
screen section.
...        
  03 screen-1-ef-3 Entry-Field
     line 35.8
     column 49.7
     size 11.6 cells 
     lines 3.5 cells 
     id 20
     3-d
     visible 0
     .
...
procedure division.
...
  modify screen-1-ef-3 visible 1
...