When set to 1 (on, true, yes), this variable causes all ACCEPT statements without a PROMPT clause to be treated as if they had a PROMPT SPACES clause. This causes the screen to be erased at the field position prior to the data's being entered. This variable is provided for compatibility with ACUCOBOL-85 Version 1.3 and earlier, which behaved this way. The default setting is 0 (off, false, no).