Once you have selected a variable you can delete it by clicking on the 
icon on the main toolbar or by pressing Del.
icon on the main toolbar or by pressing Del. icon on the main toolbar or by pressing Del.Caution: | If any rules' condition or action parts refer to the variable you have removed, the references will be reverted back to their non-terminals. This will make those rules, and therefore the enclosing states and the scenario, unfinished. |
