[ Feature Request] Add Group block

[nphamvn]

The addition of a Group Block feature would enable users to logically group multiple blocks into a single container.

[vgibilmanno]

I like this very much! It would open the possibility to duplicate a whole group or conditions could be applied to groups.

[JhumanJ]

I think it's a great idea, I'm just not sure how it would work design-wise. I don't want the UI to become too complicated 🤔