* **About deleting segments of Schematic Wires and Line, Bezier and Polygon drawing lines.**
Whilst drawing a Schematic Wire and Line, Bezier and Polygon drawing lines, it is possible to remove segments (back to one or two segments joining the start and the current end points) by pressing the `DEL` key.
Note that at present (140628): Once the wire or line is completed - by right clicking - it is no longer possible to delete individual segments. Reselecting a line and pressing the `DEL` key will delete the whole line.
* **About the little circles / discs / dots on Schematic Wires and on Line, Bezier and Polygon drawing lines.**
The little green circles are end or corner points. You can grab and move them to adjust the wire.
In between the green circles there are little blue circles. These are grab handles to add new corners.
As you move a blue circle it turns into a green corner circle and two new blue circles are added; one on each side of the new green circle.