Navigate to Environment on the left side menu
Set Environment name to tutorial
Set Description to Sandbox for tutorials
Sandbox for tutorials
Leave all other options as default and click SAVE
ENV Variables are used to set Terraform variables via shell environment variables prefixed with TF_VAR_
Backend is the Terraform backend to store the Terraform state, see https://www.terraform.io/docs/backends/ for further information.
Terraforge provides each own Backend and needs no configuration!