Hi
You can use CALL DEFINE to set style information dynamically based on some values. See example below.
data newClass;
rowNum = _n_;
set sashelp.class;
run;
proc report data=newClass;
column rowNum name sex age _dummy;
define rowNum / display noprint;
define name / style={width=6cm};
define age / display;
define _dummy / computed noprint;
compute _dummy;
if rowNum <= 5 then do;
call define("name", "style", "style={just=center}");
end;
else do;
call define("name", "style", "style={just=right}");
end;
endcomp;
run;