Watch this screen-cast to learn how to add MPS core capabilities to IntelliJ IDEA and how to import third-party languages. We'll go through the various options that enable the MPS plugin inside IntelliJ IDEA, configure the plugin, create our first demo and run it. We will then import a separate language plugin in order to use the contained language in our code.
Don't forget to check out the screen-cast on creating IntelliJ IDEA language plugins.
Note: You may also benefit from checking out the user guide section dedicated to running MPS inside IntelliJ IDEA.