Updated to Forge 1.12.2. Built on Forge 126.96.36.1993, but should work on other 1.12.2 builds as well.
Note that Java 6 support has been officially dropped. If you were still using Java 6, you need to upgrade now. (Java 7 is still supported but EOL. Consider upgrading to Java 8 if you are not using it already.)
- Join the Discord: https://discord.gg/YKbmj7V
Quick tutorial: Once you download and install WorldEdit, enter a creative world and type
//wand. Left click one block, right click a different one, and then type
//set glass. You can learn more on the WorldEdit wiki.