&DEFVAL
&defval &Defval
You can replace the following code:
% REPEAT VARYING &SC-I FROM 1
% WHILE &DEFINED( &<&SCR>-FLD-<&SC-I>)
    % &VAR = &<&SCR>-FLD-<&SC-I>
% END
               		With this code.
% REPEAT VARYING &SC-I FROM 1
% WHILE &DEFINED( &<&SCR>-FLD-<&SC-I>)
    % &VAR = &DEFVAL
% END
               	 
Comments:
&DEFVAL is an abbreviation that executes faster than the equivalent, more explicit code.