zohir, thanks for the information.
Wow! Great respect to the author. This is really cool CAD! After studying the video on YouTube (
https://www.youtube.com/channel/UCEzN0xE8CM6XQR2xxcXxnuA), I noticed that CAD works great with very large drawings. Now, I'm trying to work in it, the interface is in English and is similar to old versions of AutoCAD. I really like it...