Its also currently hard to reproduce if you make changes with Inkscape. I tried to get across the jack connects to the plug but as I said its ugly. The schematic view is truly ugly as I'm no artist, if one of you artistic types would like to come up with a better schematic view I would be most appreciative. The connection doesn't appear to care as in the sketch it is the wrong way but still connects.
You can (and probably should) move the plug to top in part->raise and lower as that is how it is designed to look plugged in. If you download this you can export the 2 custom parts from the temp parts bin which will at least give you a male barrel connector breadboard icon (and its associated female connector if you actually want to try connecting it). But other than that as this sketch demonstrates this appears to work. Well knock me over with a feather! This hare brained scheme actually appears to work at first blush, Some notes, the plug is a bit odd in that the bendable leads are female (as opposed to normal connections which are male), so you need to drag the wire from the connector to the end of the bendable lead to make the connection.