Another important component is the toolbar. The user is able to export the displayed net
in PDF format by clicking initially on the rst item of the toolbar and then on the icon
which shows up afterwards.

A dialogue appears where the location and name of the le needs to be chosen, after it can
be converted and nally saved. The next two buttons trigger the common undo and redo
function. The functionality can also be provoked by pressing the keystroke combination
STRG+Z or STRG+Y respectively.

The last option of the toolbar which needs to be introduced in this section is the zoom
function. It can be utilised by clicking rst on the zoom button and then on the plus or
minus icon respectively in order to zoom in or zoom out.

Particularly icons in the toolbar can be expanded by clicking on them. As a consequence, new buttons are shown in a horizontal list under the icon. Each list displays a “plus-sign” on its right side. By clicking the “plus-sign” the list of buttons from the toolbar is encapsulated.

This feature is useful, when essential functions want to be utilised directly without extra
clicking. All other options, which can be chosen from the toolbar, are explained in the
section Editing nets.