A new [MMT-Plugin](https://plugins.jetbrains.com/plugin/11450-mmt) for the [IntelliJ IDE](https://www.jetbrains.com/idea/) has been released, adding usual IDE-functionality (syntax highlighting, cross referencing, project management etc.) for MMT to the IDE.
Documentation and sources available [here](https://github.com/UniFormal/IntelliJ-MMT/)