In the tool bar you will find the buttons
of which the green arrows and the house are intended for navigation.
By clicking on 
the file dialog opens and you can choose the main source file.
The symbol 
opens the template dialogue, which offers several sample programs of different type.
When going through the source file, the trace of positions will be stored and you can go backwards by clicking 
. The other arrows work analogous to a browser navigation on the internet. The arrows up 
and down 
are useful in graph navigation of the Professional edition. If the Graph (CFA oder DFA) is too complicated, it can be simplified by pressing the arrow under certain conditions. The arrow reverses the action.
The arrow can also mean return to upper file level, if you have entered a file via double clicking on an include/copy file.
With the home button 
is presased the navigation options will be set to default values.
If the disk 
is shown, the source loaded has been modified and can be saved by pressing the button.
The print preview symbol 
opens the print preview, where the pages are shown in a more pretty way.
With the button 
you can open a new frame and the windows shown on the right will be moved to that frame. A second click reverts the action. The frame closes automatically if necessary.
The simulation 
is only available in ther Professional Edition and helpt to simulate the program execution under certain aspects.
If you press 
the batch command specified in options becomes executed or, if the current file is a batch command, *.bat or *.cmd, that one will be run in the protocol window.