rea. <BR><BR>
<I><B>Important</B></I>: the rotation will be done around the center of the area, so you have to set this center first. To do that, use <B>zoom</B> and simply click once on the point you want to be the area center (you can click anywhere, but if you click close enough to an event or a point, its coordinates will precisely define the new center. Useful to scale circles)<BR><BR>
So now you have these two circles: one follows the mouse (its radius change) and the other doesn't change (it was defi