# Enter the variables Click the button VARIABLE with the left mouse key. An editor appears in the grey working field where a name can be inscribed (2 lines at the most). After clicking OK the variable appears in a yellow case. With the left mouse key pressed it may be shifted and placed at will. In such a way a preliminary effect system as a little help to visualize the description can be built up step by step. To rename a variable, click on it with the right mouse key. In the little context windows you have the choice to change its indication, to delete it or to enhance its ingoing or outgoing effects.