Posted by Poupinette on Feb 25, 2012; 12:56am
URL: https://forum.librecad.org/howto-copy-a-level-tp4522872p5514336.html

Thanks Rallaz.
You actually do not need to do exactly what you said but the part not using CTRL+C but the Move/copy function is tha key because you get the window asking if you want to "Use current layer".