• About deleting segments of PCB Tracks.

Whilst drawing a PCB Track, 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 Track is completed - by right clicking - it is no longer possible to delete individual segments. Reselecting a Track and pressing the DEL key will delete the whole Track.

• About the little green circles / discs / dots on PCB Tracks.

When a Track is selected, the little green circles that appear are end or corner points. You can grab and move them to adjust the wire.

It is also possible to move a segment between the green circles by selecting the Track and then left-clicking on the segment and moving the mouse. As the segment is moved, new corner circles are added automatically as required.