We created a wiki page describing Dependencies and Classpath in MPS in great detail. If you ever wondered which entries are required into Solution Dependencies or Model Used Languages, this is the place to look at.The wiki page describes all settings influencing scoping, classpath, and using languages. It points out where to find them and the effects of every setting. It also contains a recipe section containing step-by-step instructions on the required settings for various situations.
Please drop a mail to mbeddr team if you're missing a recipe or spot an error.