FreeFormTool

[Hachi Manzur]

Hi guys !
First of all, thanks for the job, it's quite nice !

I am building an app in which I need to select clusters of points. For that purpose I saw the FreeFormTool
and it is able to build one polygon for me. The problem is that I want to create several polygons each one
with a different color/marker. Is there ant way to specify in advance the properties of a newly created polygon ?
Once a Polygon is created, how can I get a handle to interact with it, i.e. obtain the coordinates ?

Also, how can I send a signal that I stopped creating a polygon, and that I would like to create another one ?

Thanks