See the description of the view.
===The mouse actions on the map===
====button 1 ( left button )====
You have two usages for the button 1 :
===Adding or Linking to a place===
When you add a place or try to link a place to the position of the mouse, you'll get a place selection in a region.
You'll see on the map a circle in which you may choose markers place names. You can adjust the circle size with the cursor. Depending on the diameter of this circle, a list is created. If the place has already some filled fields, you'll see these values in a green color row. If you agree, you double click on this row. if you don't agree, you can choose another row.