Create a stable true rectangle

[Nikon]

Good day everyone!
I've discovered new (old?) the possibilities of a true rectangle. 
It is very convenient to work with him!
The only drawback is that the rectangle is unstable. You can create it and work with it only in the current file. If you then close and open this file, the properties of the true rectangle are lost.
Is it possible to make it stable so that its properties are preserved?

https://autocadtips1.com/2011/11/20/autolisp-make-a-real-rectacgle/

 

AutoLISP: Make a Real Rectangle
Posted on November 20, 2011 by AutoCAD Tips
A long time ago, AutoCAD used to make Rectangles and polygons as their own entities. When you made a rectangle and then did a LIST <enter> on it, it would show as a rectangle. Nowadays, these objects are those objects in their geometry but are made of polyline entities. So modifying these objects is sometimes hard. that’s where this routine steps in to help.

This routine lets you create a rectangle and even after you continue working elsewhere in your drawing, you can come back to that rectangle and modify that object and it acts like how rectangles used to act in AutoCAD.

Here’s how:

TREC <enter> to start “True RECtangle”
Create a rectangle how you normally create one
When needed, this routine will let you drag a single corner and the rest of the rectangle’s geometry will adjust accordingly to keep its geometry as a rectangle.

 

TrueRect.lsp

Edited 1 hour ago by Nikon