gp_grix – a Sitebuilder-Module for Contao 3.5
How to install ans setup: https://youtu.be/RlQWJwvOen0
How to use: https://youtu.be/0yrzWbtfiRo
How to create nested columns: https://youtu.be/jc-GIHvdaoo
The module still contains some bugs and should not be used for productive websites.