surface count/control (by type) within a closed polyline

[Mano63]

Good morning at the whole forum,
I would need a command to update the total square meters of the closed polylines contained within another closed polylinea. I attach a dwg and try to explain myself better: what I need is update the totals of the square meters*** of individual types (different for layer with the names indicated) every time I make an update within the "poliline-container". I tried with data fields and with data extraction, but the limit of the two systems is that updates are made only on existing polylines before editing (only on stretching and considering cancellations, but not if new polylines are added).
Maybe it would be better a dedicated lisp.
Can some saint help me?
*** attention: I need square meters, even if the polylines are represented in mm (e.g. square polylinea 4000 x 4000 = 4 x 4 m)

thank you all in advance!

 

[rpor66]

select polylinea, replaces texts with its values, identified by the plan.
the variable csdivisorearea imposed it to get the conversion in square meters.
if you want you can create the texts automatically, placing them according to the selection rectangle.

greetings

 

[Mano63]

Thank you 1000 rpor66!
I'll try it right away.

 

[Mano63]

... when I select polylinea, this comes out to me:
?? is it necessary to intervene on the lisp?

Thank you.

 

[Mano63]

You look great. ... it works!

Thank you again!