Picking points
You can choose how to pick a point (end, center, ...) by selecting one of the icons on the bottom of the application.
You can also press <submenu> on your mouse to open a popup menu and select the desired option.
You can select the delta, tangent and perpendicular options together with the other options (end, inters, center, mid, free, keyboard).
The option �free
point� 
�is not so free. It
will also pick an end of an entity when you pick close to the end of an entity.
It will pick an
intersection of entities when the cursor changes to 
.
