Hi Olive:
There is no avaliable options for this in the current version, maybe you can try to use some scripts or Origin C function to rename the column names? Like:
win -a Data1;
wks.col = 2;
nn$ = wks.col.name$;
win -a Data2;
wks.col = 2;
wks.col.name$ = nn$;
Larry
OriginLab Technical Services