MP2 appeared later, and it was not published in the general documentation, they immediately made a section for it, so everything that is not in the MP2 section is for MP1, but due to multiple changes and migrations, something could have been lost, but the documentation is available. Also for MP1 you can just take any existing plugin...
MP2 appeared later, and it was not published in the general documentation, they immediately made a section for it, so everything...