DropDownByKey into a Table

Hi experts,

I need insert a Drop Down By Key into a Table, in a WebDynpro application.

I have created a node (cardinality 0...1) which has all fields that I have to populate in the table. The table only must show one row.

I think that I must create a SubNode (cardinality 0...n) into the other Node to map this with my DropDown, but I'm not sure.

Could anybody tell me how can I add a Drop Down By Key into a Table?

Thanks in Advance!

Lucas