In fact it may jump over 0 tracks. Often it’s there so that a connection may be made or not at the time the board is prepared for operation.
Worth repeating. Or looking from the other side, a PCB is one realisation of a schematic. Other realisations are breadboard prototypes, and simulations (would that be a virtual realisation?, my head is spinning).
Said in a different way: you can regard a jumper as a primitive DIP-switch. On a schematic, you’d normally show the jumpers in their default settings. That’s why you have the option of NC and NO versions.
You may find this useful - use an existing symbol or create your own.
Can create a Footprint that includes 3D Step file for Graphic on PCB (and, can be used as Stand-Alone without Schematic… Screenshot#2)
Link to older post containing .ZIP of the 3D Steps files…
Screenshots
Still pretty lost here. Now I will be very specific. I have a capacitor C2 connected on one side to ground and on the other by a pcb track to pin 2 of a comparator. But pin 2 of the comparator must also be connected to pin 6 of the same comparator. To do this the jumper must jump 2 pcb tracks. I am using or trying to use jumper 2 bridged. Not sure if this would be the right one.
The reality here of a real circuit is that the connecting wire would be on the component side of the board and soldered to the board on the other side.
Do I perhaps draw a little circuit like you show which is completely separate from the schematic. As I said I am completely lost here.
Any help would be appreciated.
If pin 2 is permanently connected to pin 6 then you do not need a jumper symbol. When you come to create the layout there are ways of handling the crossover. In a 2 layer board the other layer is available for connections. Then there are vias available. At the schematic stage physical layout is not a concern.
In the schematic, you don’t need to use jumpers if the traces cross. They will not be joined unless you specifically join them with a junction dot. See this thread and many others. I think the consensus amongst the devs is that “jumpers” will NOT be implemented.
I’m still wondering if we’re on Schema and the OP is discussing Hop-overs (or unders, Bob 
) or Jumpers (woolen 
or synthetic).
Ok I’ve split off Bob’s question to another thread to avoid confusing Peter even more. I am uncertain whether he’s mixing up schematic and layout concerns, or as 3Dogsthebigg suggests he’s expecting hopovers (that taboo word!) in the schematic.
Hi
I am just wondering if this is a single sided PCB that you intend to etch yourself or a standard 2 layer from one of the many Asian suppliers ?
What about skippers? Are they under consideration?
When I was in Thailand designing power supplies for a Taiwanese company in 2000, we were putting SMT components on single sided boards. We also had 2 sided and probably multilayer, but this particular project was single sided. At that time, American suppliers no longer offered single sided pcbs.
Unfortunately all this speculation and infokill about what was really meant has made OP dogatonic. 
I think you are barking up the wrong potato. wait… (??)
I don’t know why kicad have jumpers when it is so difficult to implement them. I have an idea which may work but have not tested it yet.
You take 1 jumper, say a solder jumper, and connect one end to a track from, for example, an op amp output. This is the solder point at this end. The other end of the jumper is not connected because this is attached to the jumper wire. Then the connecting wire at the other end is connected to another jumper. Again one end is left unconnected and the other end is connected to a track from perhaps another op amp. This then is the solder point at the other end.
Each unconnected end of the jumper can be referenced the other end of the jumper wire using the component editor.
If you only use 1 jumper you are going to have to draw a track on the schematic which will later be seen as a track on the circuit board.
In all of the above I am referring to using a jumper on the schematic.
On a schematic you don’t need jumpers for this. Just draw a wire from the first point to the second. If the wire crosses over other wires then it doesn’t matter. They aren’t joined unless you explicitly want them to be.
Here is another section of a Schematic showing how jumpers are used:
Jumper 1 shows that there is a jumper somewhere between R5 and Pin5 of U2. This is a schematic, so it does not show where or why the jumper exists. All it shows is that there is a jumper, that on the PCB, will give a break in the track between R5 & U2B.
Jumpers 2 to 5 would serve a different purpose. These would act like switches… select 1 of the 4. In this case there would probably be some written instructions as to how these jumpers should be used.
NOTE: On the schematic, jumpers have nothing to do with any wires crossing other wires, they are treated just as any other symbol on a schematic. Which wires are soldered to which pads, how when and why, have nothing to do with the schematic.
There is nothing very difficult about implementing jumpers on a schematic, you just place them and attach wires.
I think we have an XY problem here.
My hunch is that OP wants to make a single sided board using jumper wires for unavoidable crossings, but is obsessed with putting a jumper symbol in the schematic. But I don’t know until they explain more.
Here are typical footprints assigned to jumper symbols. First a pinheader jumper without the shorting thingy.
Next a solder jumper that is soldered before first use.
