A script for performing SSR (Scale, Shear, Rotate) transforms on Illustrator to create "isometric" drawings.
Place the .jsx and the /assets folder into the directory path_to_illustrator_install/Presets/en_US/Scripts. Then you're good to go!
In Illustrator, select what you want to transform. Select File > Scripts > IsometricTransform.jsx and a menu will pop up, with four options: one for each side, with two for the top (since there are two ways to transform toward the top panel). Select which transform you want, and that's it!