How to add this bbcode?

[keegmen]

Hi guys.
In Miforo we will share many codes and I would like to know how I can implement this system to embed the codes, since the one that brings by default does not respect the line breaks.

[In Omnibus]

That's not a BBCode. It's a rewrite rule which belongs in the .htaccess file

[keegmen]

I was referring to the box that surrounds the code, not the code in the image hehehe. I would like to be able to wrap codes so that it is more like copying the code