The expand window statement switches the size of a scrolling window line between its normal line size and its expanded line size.
expand window scrolling_window {of form form_name}, boolean
• scrolling_window – The name of the scrolling window to be affected.
• of form form_name – An optional parameter specifying the form the scrolling window is part of.
• boolean – The value true sets the scrolling window to its expanded line size. The value false sets it to the normal line size.