Custom entities in Vaadin Start

Sometime last year I was considering my options for my small website and Vaadin came up so I took a closer look. I tried out the Vaadin Start online tool, and vividly remember being able to create custom entities inside the tool, which was a tremendous help, but now I can no longer seem to find that option. Was the feature removed?

Edit:
This was also mentioned in the documentation but I still can’t find that option anywhere

Hi, as you might notice we had Start redesign last year. Unfortunately not all features have been moved to new version. It is in our backlog, but I cannot guarantee any ETA.