Supressing Std. SAP functions in F1 hep documentation of ALV grid Control

hello,

Could anyone tel me how to suppress the std. sub-headings in F1 help documentation of ALV grid fields(OO)? Like, "Shorttext","Definition" appearing as

sub-headings for short text & docu. declared in Data element of a field.

Note : i ' ve declared Data element for fields thru ROLLNAME attribute of fieldcatalog.

Thanks.

-Swaminathan.