Width-In-Cells
This style implies that the value specified for the Size property, the one setting the Check-Box control’s width, is expressed in CELLS. It is possible to get the same result writing: "Size value CELLS".
 
Example - Define a check-box with width in cells
screen section.
...
  03 screen-1-cb-2 Check-Box
     line 27.0
     column 10.0
     size 11.0
     lines 30
     id 11
     title "Sugar for you coffee?"
     width-in-cells
     .