You can have any numer of picture windows open at the same time. Each window is provided with a row of buttons:
opens or closes the window with the list of signs
opens the magnifying window
closes the magnifying window
closes the window with pictures
focusing up
focusing down
enlarging the basic picture, which can be dragged
Opens or closes the window with the list of signs. The list of signs is
opened in a separate window. The text is generated from the
database of signs and sometimes additional notes are added.
When moving the mouse over the text of a sign description
the background of the text changes to bright green and
the arrow (or other signs) appear in the picture.
After moving the mouse off the arrows disappear.
After clicking on the sign description the background
turns dark green and the arrows are fixed until another
click.