What do the symbols mean which appear on the toolbar at the bottom of the navigation screen?
In order from the left, they indicate for the Primary person displayed, that you have ticked the No descendants, Marked or Confidential options. The paper-clip symbol shows that there is at least one source concerning the Primary person for an event. The following symbols indicate that the Primary person has x sons, x daughters or x children of undetermined sex. Finally the different genealogical numbers relating to the Primary person are displayed: the user number which you may have attributed, plus his or her Ahnentafel number if this exists.