Posted by ag123 on Mar 02, 2020; 11:59am
URL: https://forum.librecad.org/Possible-to-add-custom-command-line-commands-tp5718493p5718499.html

there are some tools like ezdxf (python scripting) not librecad
https://ezdxf.mozman.at/docs/introduction.html
https://github.com/mozman/ezdxf
that may help. but that's really programming down to the file / model level extracting entities
and reconstructing files.
one'd need to weigh if it is after all worth the effort. or perhaps, one can search the web for pre-made solutions probably non-free