Drawing a circle
For drawing a circle:
on tree view select an object which will be an owner;
go to the map view;
select circle drawing mode (press button with a circle in a toolbar);
tap point on map. This point will be a circle center point;
you can change style for this circle. For this press button with palette in toolbar and set styles which you want;
for finishing of circle drawing make double click on the map. It set circle radius and finish creation process.