Hi @JiriValasek This looks awesome. Are you aware of the other workbenches that have similar functionality? How does this workbench differ? Also can you add: - [x] License info to README - [x] Screenshots and/or short animated gifs - [x] Installation instructions - [x] a place on the forum that users/testers could give you feedback beside the issue queue of this repo - [x] Add [topics](https://help.github.com/en/articles/classifying-your-repository-with-topics) (aka tags) to this repo like `freecad` `workbench` `addon` `animation` etc...