How to get Query dynamically from a static Record group and how to get dynamically column mapping f

Is there a possibility to get this information dynamically (maybe JavaBeans like column Titles and widthes by old LOVAddon.java ?).

Background: thw´ere is a wish to substitute LOV's with some Table-loke features,

it works fine, but I did not succeed to get this two informations, the query_text of the LOv's Record group

and the LOV's column setting (especially the list of the "return" columns).

Anybody can help ?