Where are my JetBrains MPS plugins installed?
When installing a zip file from source the zip contents are unpacked to your .MPS/config directory. For example in windows your plugins are located in: C:\Users\me\.MPS32\config\plugins
When installing a zip file from source the zip contents are unpacked to your .MPS/config directory. For example in windows your plugins are located in: C:\Users\me\.MPS32\config\plugins