The first link last part of document, it talks specifically about motors with 8 leads, which u do not have.
You have 6 leads, so you can only have the classic bipolar mode, which is also called "series". In other words you have one long coil with a center tap, which equates to two smaller coils connected in series.
To have bipolar "parralel" mode wiring, you need 8 wires, schematic just as before with 6 wires but with center tap made by two wires, difference being the end of first small coil and the start of the second half coil are NOT connected. In other words, if you connect the two middle wires, you get a longer coil, and exactly same situation above, the "series" connection of 6 wires. BUT alternativelly you can also connect both of these small coils in parallel, e.g. the start of the first coil with the start of the second coil, and also the endings together. This makes an overall very different "L/R" constant, and basically makes the motor be able to get "energized" faster. Theoretically better at higher speed, but also other considerents. But you need a motor with 8 wires to try this. Your link has a motor with 6 wires, and you can not wire them as bipolar "parallel" unless you have 8 wires.
You have 6 leads, so you can only have the classic bipolar mode, which is also called "series". In other words you have one long coil with a center tap, which equates to two smaller coils connected in series.
To have bipolar "parralel" mode wiring, you need 8 wires, schematic just as before with 6 wires but with center tap made by two wires, difference being the end of first small coil and the start of the second half coil are NOT connected. In other words, if you connect the two middle wires, you get a longer coil, and exactly same situation above, the "series" connection of 6 wires. BUT alternativelly you can also connect both of these small coils in parallel, e.g. the start of the first coil with the start of the second coil, and also the endings together. This makes an overall very different "L/R" constant, and basically makes the motor be able to get "energized" faster. Theoretically better at higher speed, but also other considerents. But you need a motor with 8 wires to try this. Your link has a motor with 6 wires, and you can not wire them as bipolar "parallel" unless you have 8 wires.