Dave wrote
That option is grayed out for me
...
Then you have a LibreCAD v1 for windows
If you download and install LC v2 you can have this plugin
http://sourceforge.net/projects/librecad/files/Windows/2.0.0alpha3/LibreCAD-Installer_2.0.0alpha3.exe/downloadRemember this version is functional but alpha stage, you can install in other directory and use test both versions
An alpha4 version coming soon