There are none references to Ratel’s old Alter tab. Neither in 1.0.16, 1.1.0 or Master. I have checked the whole repo.
The only reference is in https://tour.dgraph.io/*/schema/1/, but it can’t lead users to the old tab.
And also there is only this reference for Ratel A Tour of Dgraph
Or comments like
You’re able to do that through our clients, cURL or Ratel UI.
Or notices like
{{% notice “note” %}}
Note that Schema changes are made via Alter operations only. All clients have an operation for Mutate, Query and Alter.
{{% /notice %}}
Maybe He is reading old documentation while using the Tour. I see a lot of users for some reason (maybe Google’s search engine) using older documentation. This can lead to confusion.