The Yellow box on the bottom the Editor Application

In this box, you can see some of the basic information on the variable that is selected, and you can use the “Insert,” “Duplicate,” “Edit,” & “Delete” tools to modify it.

Insert: by clicking on this button, a window will open, and you can create a new variable.

Delete: If the variable is not used in any of the actions, you can click on this button and delete it.

Edit: by clicking on this option, a window will open, and you can edit different aspects of the variable.

Duplicate: if you click on this option, you can create a copy of the selected variable.