Getting area of an object into a table doesn't seem to work

Hi All!

I've checked my old dwg in DraftSight in which I use table with collection of room areas. DraftSight read areas but show them on grayed backgound inside table and when I change shape of object to change area, number inside table is not udated after regen. Field inside a table is like this: =Object(86299488).Area

Is there a way to make DraftSight update numbers inside table and is it possible to get number of object to read area or lenght from?

Best regs.
Alex.