APEX

I have a great need to produce an APEX (version 2.2.1) tabular form in
which users would be able to do Excel-like copy/paste of tabular form
fields from one part of the form to another.

For example, a user would want to somehow (ideally highlight with the mouse - not sure if this is possible) select the first 2 rows of the form and then
copy/paste these to, say, rows 7 and 8, overwriting any values in
those form fields. Or, select field 2 (this would be on row 2) under column A and then copy/paste this field to, say, fields 3 through 10 under the same column A.

I am currently trying to do this using javascript, but am not sure how to go
about it and would appreciate any help or advice.

Thank you very much.

Elie