OnShape Gridfinity Bin and Base generator features

Since I've moved from Fusion360 years ago, I've implemented a feature scripts in OnShape to generate gridfinity bins & bases:
https://cad.onshape.com/documents/f307f8af01083b99b55bbcf9/w/e62d7ab7a660a796bb9461a7/e/10837cead0dddf47a9b60a3b

(attached step files are a sample from my drawer layout)