Random selection Mode :
This mode allow to select randomly point / polygons using a % of the total or a fixed number

NB : the quantity slider is limited to 100, if you want to select more polygon / points using fixed number, type the number into the field

	Starting Shape
	This will select 20% of the current point selection
	Result
	This wil select 20 points randomly
	Result : only 20 points are selected
	Same thing, with polygons
	20 polygons randomly selected