How to trim, stretch, and bend wires.
A Zoom Extents is triggered when a wire runs off the screen. If this zooming back and forth becomes annoying during multiple trims, then zoom back so that all the circuitry is shown on the screen. Or press Z and [space] at the trim prompt. It triggers a Zoom Extents that persists through the rest of the trimming edits.
The wire stretches or trims to the nearest wire or in-line component wire connection point.
The additional wire segments are added based on the right-angle direction.