I'd like to know how to break detail line into multiple lines. I have lot data to show in report and Legal size is not enough.

How can I get rid of the line line printed in the subfoot?

Thanks.

To break the report row into by using FOLD-LINE. Check the manual.

What do you mean by "How can I get rid of the line printed in the subfoot"? SUBFOOTS are only printed if you code the SUBFOOT statement.