November 8, 2020
Hi there! The purpose of this add-on is to quickly create images of Scratch blocks to insert into Google Docs and Slides (and potentially Sheets in the future). The original audience I had in mind was teachers who are looking to create lesson plans, presentations, and handouts, but I've heard from people about other uses beyond this.
If you want to run/test your blocks, you'll need to do that on the Scratch website. This is meant as an instructional tool to streamline the process of creating images, not as a clone of Scratch.