inserire area con un click. draftsight oppure doublecad xt

[Pfaff74]

I would like to insert the area value of a closed polygon (even if not polylinea) with a click.
with autocad I used this http://www.cad3d.it/forum1/showthread.php?6270-calcolo-delle-superfici-e-del-perimetrobut it seems to me that with daftsight free the lisp do not work.

How can I do that?
anyhow which cad free use that supports lisp?

Thank you.

 

[openoikos]

that I know the only free cad that supports the lisp is nanocad.http://nanocad.com/here you can also find the translation in Italian:http://cadgratis.it/nanocad/