To configure an environment variable:

1. Open your deployment project and expand the relevant environment panel. In the Other settings section, click Variables:
   
2. Enter a valid key and value into the relevant fields in the Variables screen.
3. Click on Add to add the variable scheme:
   
   
   
4. You can remove unwanted variables by clicking the relevant dustbin icon on the right of the Variables screen.
5. Click Back to deployment project to return.