Max-Lines
The value set to this property establishes the maximum number of lines the user can enter in a multi-line entry-field.
 
Example - Define an entry-field control with a multiline style, limiting the lines to 4
screen section.
...
  03 screen-1-ef-4 Entry-Field
     line 40.6
     column 47.5
     size 16.2 cells 
     lines 12.3 cells 
     id 21
     multiline
     3-d
     max-lines 4
     .