Type FieldDisplay and set it to 0
FIELDDISPLAY -Turn off/on the grey background of a Attribute or field Text
Turn off/on the grey background of a Attribute. The grey background mask doesn't print.
FIELDDISPLAY system variable.
FIELDDISPLAY: <0>Turn off grey background mask.
<1>Turn on grey background mask. 1>0>
<0><1>
1>0>
1>0>