How do you setup JmonkeyEngine 3.1 Alpha on eclipse?

Hi! My name is ValorZard, and I wish to know how do you set up Jmonkeyengine 3.1 on eclipse. I already know how to set up the 3.0 version on eclipse, but I can’t find any of the nightly builds, so I am pretty stumped. I also cannot use maven or gradle (I know how, I just can’t use them).

Thanks in advance.

Here you can find the JAR files, there seems to be a snapshot that is less than week old 3.1.