Ability to Delete a Selected Wire Segment in Schematic
Until now, the only real way to remove a wire segment on the schematic has been through use of the Break Wire feature, with the Cutting Length option set to Snap To Segment. And while a segment could be selected graphically, the entire wire to which it was connected would be removed if using the Delete keyboard shortcut. In addition, the ability to 'get at' segments that start or end at an automatic juntion has been missing, returning the entire segment of wire and essentially ignoring the junction.
Treatment of wire segments has been greatly enhanced in Altium Designer 14.3. Not only can you now perform surgeon-like removal of selected wire segments with the tap of the Delete key, auto-junctions are also accounted for - allowing you to remove a segment of a wire up to that junction only (and including that junction if only two other wire segments would otherwise remain connected to it).